# The LearningOnline Network
# Feedback
#
# $Id: lonfeedback.pm,v 1.390 2022/01/19 00:44:31 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
###
package Apache::lonfeedback;
use strict;
use Apache::Constants qw(:common);
use Apache::lonmsg();
use Apache::loncommon();
use Apache::lontexconvert();
use Apache::lonlocal; # must not have ()
use Apache::lonnet;
use Apache::lonhtmlcommon();
use Apache::lonnavmaps;
use Apache::lonenc();
use Apache::lonrss();
use HTML::LCParser();
#use HTML::Tidy::libXML;
use Apache::lonspeller();
use Apache::longroup;
use Archive::Zip qw( :ERROR_CODES );
use LONCAPA qw(:DEFAULT :match);
sub discussion_open {
my ($status,$symb)=@_;
# Advanced roles can always discuss
if ($env{'request.role.adv'}) { return 1; }
# Get discussion closing date
my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
# If it is defined and in the future, the instructor wants this discussion to be open
if (defined($close) && $close ne '' && $close > time) {
return 1;
}
# It was not explicitly open, check if the problem is available.
# If the problem is not available, close the discussion
if (defined($status) &&
!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
|| $status eq 'OPEN')) {
return 0;
}
# The problem is available, but check if the instructor explictly closed discussion
if (defined($close) && $close ne '' && $close < time) {
return 0;
}
return 1;
}
sub discussion_visible {
my ($status)=@_;
if (not &discussion_open($status)) {
my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
if (!$env{'request.role.adv'}) { return 0; }
}
}
return 1;
}
sub discussion_vote_available {
my ($status,$symb)=@_;
my $canvote=&Apache::lonnet::EXT('resource.0.discussvote',$symb);
if ((lc($canvote) eq 'yes') ||
((lc($canvote) eq 'notended') && (&discussion_open($status,$symb)))) {
return 1;
}
}
sub get_realsymb {
my ($symb) = @_;
my $realsymb = $symb;
if ($symb=~/^bulletin___/) {
my $filename=(&Apache::lonnet::decode_symb($symb))[2];
$filename=~s{^adm/wrapper/}{};
$realsymb=&Apache::lonnet::symbread($filename);
}
return $realsymb;
}
sub list_discussion {
my ($mode,$status,$ressymb,$imsextras,$group)=@_;
unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
unless ($ressymb) { return ''; }
$ressymb=&wrap_symb($ressymb);
my $outputtarget=$env{'form.grade_target'};
if (defined($env{'form.export'})) {
if($env{'form.export'}) {
$outputtarget = 'export';
}
}
if (defined($imsextras)) {
if ($$imsextras{'caller'} eq 'imsexport') {
$outputtarget = 'export';
}
}
my ($nofooter,$nodisclink,$nofdbklink);
if (not &discussion_visible($status)) {
if ($mode ne 'board') {
($nofooter,$nodisclink,$nofdbklink) = &check_menucoll();
if ($nofooter || $nofdbklink) {
return '<br />';
} else {
&Apache::lonenc::check_encrypt(\$ressymb);
return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
}
}
}
if ($group ne '' && $mode eq 'board') {
if (&check_group_priv($group,'vgb') ne 'ok') {
return '';
}
}
unless ($outputtarget eq 'export') {
($nofooter,$nodisclink,$nofdbklink) = &check_menucoll();
}
unless ($nofooter) {
my ($blocked,$blocktext) =
&Apache::loncommon::blocking_status('boards');
if ($blocked) {
my $footer = '<br /><div class="LC_feedback_link">';
unless ($nodisclink) {
$footer .= '<span class="LC_feedback_link">'.$blocktext.'</span>';
}
&Apache::lonenc::check_encrypt(\$ressymb);
if ($mode ne 'board') {
unless ($nofdbklink) {
$footer.=&send_message_link($ressymb);
}
}
$footer.='</div>';
return $footer;
}
}
my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
my $discussiononly=0;
if ($mode eq 'board') { $discussiononly=1; }
unless ($env{'request.course.id'}) { return ''; }
my $crs='/'.$env{'request.course.id'};
my $cid=$env{'request.course.id'};
if ($env{'request.course.sec'}) {
$crs.='_'.$env{'request.course.sec'};
}
$crs=~s/\_/\//g;
my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
&& ($ressymb=~/$LONCAPA::assess_re/));
my %usernamesort = ();
my %namesort =();
my %subjectsort = ();
# Get discussion display settings for this discussion
my $lastkey = $ressymb.'_lastread';
my $showkey = $ressymb.'_showonlyunread';
my $markkey = $ressymb.'_showonlyunmark',
my $visitkey = $ressymb.'_visit';
my $ondispkey = $ressymb.'_markondisp';
my $userpickkey = $ressymb.'_userpick';
my $toggkey = $ressymb.'_readtoggle';
my $readkey = $ressymb.'_read';
$ressymb=$encsymb;
my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
my %discinfo = ();
my $showonlyunread = 0;
my $showunmark = 0;
my $markondisp = 0;
my $prevread = 0;
my $previous = 0;
my $visit = 0;
my $newpostsflag = 0;
my @posters = split(/\&/,$dischash{$userpickkey});
# Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
my $sortposts = $env{'form.sortposts'};
my $statusfilter = $env{'form.statusfilter'};
my @sectionpick = split(/,/,$env{'form.sectionpick'});
my @grouppick = split(/,/,$env{'form.grouppick'});
my @rolefilter = split(/,/,$env{'form.rolefilter'});
my $totposters = $env{'form.totposters'};
$previous = $env{'form.previous'};
if ($previous > 0) {
$prevread = $previous;
} elsif (defined($dischash{$lastkey})) {
unless ($dischash{$lastkey} eq '') {
$prevread = $dischash{$lastkey};
}
}
my $cdom = $env{'course.'.$cid.'.domain'};
my $cnum = $env{'course.'.$cid.'.num'};
my $crstype = &Apache::loncommon::course_type();
# Get information about students and non-students in course for filtering display of posts
my %roleshash = ();
my %roleinfo = ();
my ($classgroups,$studentgroups);
if ($env{'form.rolefilter'}) {
%roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
foreach my $rolekey (keys(%roleshash)) {
my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
if ($role =~ /^cr/) {
$role = 'cr';
}
my ($end,$start) = split(/:/,$roleshash{$rolekey});
my $now = time;
my $status = 'Active';
if (($now < $start) || ($end > 0 && $now > $end)) {
$status = 'Expired';
}
if ($uname && $udom) {
push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
}
}
my ($classlist,$keylist) =
&Apache::loncoursedata::get_classlist($cdom,$cnum);
my $sec_index = &Apache::loncoursedata::CL_SECTION();
my $status_index = &Apache::loncoursedata::CL_STATUS();
while (my ($student,$data) = each %$classlist) {
my ($section,$status) = ($data->[$sec_index],
$data->[$status_index]);
push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
}
($classgroups,$studentgroups) =
&Apache::loncoursedata::get_group_memberships($classlist,$keylist,
$cdom,$cnum);
}
# Get discussion display default settings for user
if ($env{'environment.discdisplay'} eq 'unread') {
$showonlyunread = 1;
}
if ($env{'environment.discmarkread'} eq 'ondisp') {
$markondisp = 1;
}
# Override user's default if user specified display setting for this discussion
if (defined($dischash{$ondispkey})) {
unless ($dischash{$ondispkey} eq '') {
$markondisp = $dischash{$ondispkey};
}
}
if ($markondisp) {
$discinfo{$lastkey} = time;
}
if (defined($dischash{$showkey})) {
unless ($dischash{$showkey} eq '') {
$showonlyunread = $dischash{$showkey};
}
}
if (defined($dischash{$markkey})) {
unless ($dischash{$markkey} eq '') {
$showunmark = $dischash{$markkey};
}
}
if (defined($dischash{$visitkey})) {
unless ($dischash{$visitkey} eq '') {
$visit = $dischash{$visitkey};
}
}
$visit ++;
my $seeid;
if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$seeid = 1;
}
my $seehidden = &can_see_hidden($mode,$ressymb,undef,$group,$cdom,$cnum,$crs);
# Is voting on discussions available
my $realsymb = &get_realsymb($ressymb);
my $canvote = &discussion_vote_available($status,$realsymb);
my @discussionitems=();
my %shown = ();
my @posteridentity=();
my $current=0;
my $visible=0;
my @depth=();
my @replies = ();
my %alldiscussion=();
my %imsitems=();
my %imsfiles=();
my %notshown = ();
my %newitem = ();
my $maxdepth=0;
my %anonhash=();
my $anoncnt=0;
my $now = time;
$discinfo{$visitkey} = $visit;
&Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
&build_posting_display(\%usernamesort,\%subjectsort,\%namesort,\%notshown,\%newitem,\%dischash,\%shown,\%alldiscussion,\%imsitems,\%imsfiles,\%roleinfo,\@discussionitems,\@replies,\@depth,\@posters,\$maxdepth,\$visible,\$newpostsflag,\$current,$status,$viewgrades,$seeid,$seehidden,$canvote,$prevread,$sortposts,$encsymb,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,\@grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt,$group);
my $discussion='';
my $manifestfile;
my $manifestok=0;
my $tempexport;
my $imsresources;
my $copyresult;
my $function = &Apache::loncommon::get_users_function();
my %lt = &Apache::lonlocal::texthash(
'cuse' => 'My settings for this discussion',
'allposts' => 'All posts',
'unread' => 'New posts only',
'unmark' => 'Unread only',
'ondisp' => 'Once displayed',
'onmark' => 'Once marked not NEW',
'toggoff' => 'Off',
'toggon' => 'On',
'disa' => 'Posts to be displayed',
'npce' => 'Posts cease to be marked "NEW"',
'epcb' => 'Each post can be toggled read/unread',
'chgt' => 'Change',
'disp' => 'Display',
'nolo' => 'Not new',
'togg' => 'Toggle read/unread',
'aner' => 'An error occurred opening the manifest file.',
'difo' => 'Discussion for',
'aerr' => 'An error occurred opening the export file for posting',
'discussions' => 'DISCUSSIONS'
);
my %js_lt = &Apache::lonlocal::texthash(
'aysu' => 'Are you sure you want to delete this post?',
'dpwn' => 'Deleted posts will no longer be visible to you and other students',
'bwco' => 'but will continue to be visible to your instructor',
'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
);
&js_escape(\%js_lt);
my $currdisp = $lt{'allposts'};
my $currmark = $lt{'onmark'};
my $currtogg = $lt{'toggoff'};
my $dispchange = $lt{'unread'};
my $markchange = $lt{'ondisp'};
my $toggchange = $lt{'toggon'};
my $chglink = '/adm/feedback?modifydisp='.$ressymb;
my $displinkA = 'onlyunread';
my $displinkB = 'onlyunmark';
my $marklink = 'markondisp';
my $togglink = 'toggon';
if ($markondisp) {
$currmark = $lt{'ondisp'};
$markchange = $lt{'onmark'};
$marklink = 'markonread';
}
if ($showonlyunread) {
$currdisp = $lt{'unread'};
$dispchange = $lt{'allposts'};
$displinkA = 'allposts';
}
if ($showunmark) {
$currdisp = $lt{'unmark'};
$dispchange = $lt{'unmark'};
$displinkA='allposts';
$displinkB='onlyunread';
$showonlyunread = 0;
}
if ($dischash{$toggkey}) {
$currtogg = $lt{'toggon'};
$toggchange = $lt{'toggoff'};
$togglink = 'toggoff';
}
$chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
if ($newpostsflag) {
$chglink .= '&previous='.$prevread;
}
$chglink.=&group_args($group);
if ($visible) {
# Print the discusssion
if ($outputtarget eq 'tex') {
$discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
'\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
'\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
'\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
} elsif ($outputtarget eq 'export') {
# Create temporary directory if this is an export
my $now = time;
if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
$tempexport = $$imsextras{'tempexport'};
if (!-e $tempexport) {
mkdir($tempexport,0700);
}
$tempexport .= '/'.$$imsextras{'count'};
if (!-e $tempexport) {
mkdir($tempexport,0700);
}
} else {
$tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
if (!-e $tempexport) {
mkdir($tempexport,0700);
}
$tempexport .= '/'.$now;
if (!-e $tempexport) {
mkdir($tempexport,0700);
}
$tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
}
if (!-e $tempexport) {
mkdir($tempexport,0700);
}
# open manifest file
my $manifest = '/imsmanifest.xml';
my $manifestfilename = $tempexport.$manifest;
if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
$manifestok=1;
print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
<manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
<organizations default="$ressymb">
<organization identifier="$ressymb">
<title>$lt{'difo'} $ressymb</title>\n|;
} else {
$discussion .= $lt{'aner'}.'<br />';
}
} else {
my $colspan=$maxdepth+1;
$discussion.= &Apache::lonhtmlcommon::scripttag(qq|
function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
var symbparm = symb+':::'+idx
var prevparm = ""
if (newflag == 1) {
prevparm = "&previous="+previous
}
if (caller == 'studentdelete') {
if (confirm("$js_lt{'aysu'}\\n$js_lt{'dpwn'},\\n$js_lt{'bwco'}")) {
document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
}
} else {
if (caller == 'seeiddelete') {
if (confirm("$js_lt{'aysu'}\\n$js_lt{'depo'}")) {
document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
}
}
}
}
|);
$discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
"\n".'<table width="100%" class="LC_discussion">';
$discussion .= &action_links_bar($colspan,$ressymb,$visible,
$newpostsflag,$group,
$prevread,$markondisp,$seehidden);
my $escsymb=&escape($ressymb);
my $numhidden = keys(%notshown);
if ($numhidden > 0) {
my $colspan = $maxdepth+1;
$discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">';
my $href = '/adm/feedback?allposts=1&symb='.$escsymb;
if ($newpostsflag) {
$href .= '&previous='.$prevread;
}
$href .= &group_args($group);
if ($showunmark) {
$discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously marked read',
'<a href="'.$href.'">','</a>',$numhidden);
} else {
$discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously viewed',
'<a href="'.$href.'">','</a>',$numhidden);
}
$discussion .= '<br/></td></tr>';
}
}
# Choose sort mechanism
my @showposts = ();
if ($sortposts eq 'descdate') {
@showposts = (sort { $b <=> $a } keys(%alldiscussion));
} elsif ($sortposts eq 'thread') {
@showposts = (sort { $a <=> $b } keys(%alldiscussion));
} elsif ($sortposts eq 'subject') {
foreach my $key (sort(keys(%subjectsort))) {
push(@showposts, @{$subjectsort{$key}});
}
} elsif ($sortposts eq 'username') {
foreach my $domain (sort(keys(%usernamesort))) {
foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
push(@showposts, @{$usernamesort{$domain}{$key}});
}
}
} elsif ($sortposts eq 'lastfirst') {
foreach my $last (sort(keys(%namesort))) {
foreach my $key (sort(keys(%{$namesort{$last}}))) {
push(@showposts, @{$namesort{$last}{$key}});
}
}
} else {
@showposts = (sort { $a <=> $b } keys(%alldiscussion));
}
my $currdepth = 0;
my $firstidx = $alldiscussion{$showposts[0]};
foreach my $post (@showposts) {
unless (($sortposts eq 'thread') ||
(($sortposts eq '') && (!$env{'environment.unthreadeddiscussion'})) ||
($outputtarget eq 'export')) {
$alldiscussion{$post} = $post;
}
unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
$discussion.="\n<tr>";
}
my $thisdepth=$depth[$alldiscussion{$post}];
if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
for (1..$thisdepth) {
$discussion.='<td> </td>';
}
}
my $colspan=$maxdepth-$thisdepth+1;
if ($outputtarget eq 'tex') {
#cleanup block
$discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
$discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
my $threadinsert='';
if ($thisdepth > 0) {
$threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
}
$discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
$discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
$discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
$discussion.=$discussionitems[$alldiscussion{$post}];
} elsif ($outputtarget eq 'export') {
my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
if ($manifestok) {
if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
print $manifestfile ' </item>'."\n";
}
$currdepth = $depth[$alldiscussion{$post}];
print $manifestfile "\n".
'<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
$imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
'<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
$imsresources .= "\n".
'<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
'<file href="'.$postfilename.'">'."\n".
$imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
'</resource>';
}
my $postingfile;
my $postingfilename = $tempexport.'/'.$postfilename;
if ($postingfile = Apache::File->new('>'.$postingfilename)) {
print $postingfile '<html><head><title>'.&mt('Discussion Post').'</title></head><body>'.
$imsitems{$alldiscussion{$post}}{'title'}.' '.
$imsitems{$alldiscussion{$post}}{'sender'}.
$imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
$imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
$imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
close($postingfile);
} else {
$discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
}
$copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
} else {
$discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
'" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
'</td></tr>';
}
}
}
unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
my $colspan=$maxdepth+1;
$discussion .= <<END;
<tr>
<td colspan="$colspan">
<table width="100%">
<tr>
<td class="LC_disc_action_left">
<font size="-1"><b>$lt{'cuse'}</b>:
END
if ($newpostsflag) {
$discussion .=
'1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
if ($dischash{$toggkey}) {
$discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
}
} else {
if ($dischash{$toggkey}) {
$discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
} else {
$discussion .=
$lt{'disp'}.' - <i>'.$currdisp.'</i>';
}
}
$discussion .= <<END;
<b><a href="$chglink">$lt{'chgt'}</a></b></font>
</td>
END
if ($sortposts) {
my %sort_types = ();
my %role_types = ();
my %status_types = ();
&sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
$discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
if (defined($env{'form.totposters'})) {
$discussion .= &mt('Posts by').':';
if ($totposters > 0) {
foreach my $poster (@posters) {
$discussion .= ' '.$poster.',';
}
$discussion =~ s/,$//;
} else {
$discussion .= &mt('None selected');
}
} else {
my $filterchoice ='';
if (@sectionpick > 0) {
$filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
$filterchoice .= ' ';
}
if (@grouppick > 0) {
$filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
$filterchoice .= ' ';
}
if (@rolefilter > 0) {
$filterchoice .= '<i>'.&mt('roles').'</i>-';
foreach my $role (@rolefilter) {
$filterchoice .= ' '.$role_types{$role}.',';
}
$filterchoice =~ s/,$//;
$filterchoice .= '<br />'.(' ' x8);
}
if ($statusfilter) {
$filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
}
if ($filterchoice) {
$discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
}
}
$discussion .= '</font></td>';
}
if ($dischash{$toggkey}) {
my $storebutton = &mt('Save read/unread changes');
$discussion.='<td align="right">'.
'<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
'<input type="button" name="readoptions" value="'.$storebutton.'"'.
' onclick="this.form.submit();" />'."\n".
'</td>';
}
$discussion .= (<<END);
</tr>
</table>
</td>
</tr>
END
$discussion .= &action_links_bar($colspan,$ressymb,$visible,
$newpostsflag,$group,
$prevread,$markondisp,$seehidden);
$discussion .= "</table></form>\n";
}
if ($outputtarget eq 'export') {
if ($manifestok) {
while ($currdepth > 0) {
print $manifestfile " </item>\n";
$currdepth --;
}
print $manifestfile qq|
</organization>
</organizations>
<resources>
$imsresources
</resources>
</manifest>
|;
close($manifestfile);
if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
$discussion = $copyresult;
} else {
#Create zip file in prtspool
if (($env{'user.name'} =~ /^$match_username$/)
&& ($env{'user.domain'} =~ /^$match_domain$/)) {
my $now = time();
my $imszipfile = '/prtspool/'.
join('_',$env{'user.name'},$env{'user.domain'},$now).
'_'.rand(1000000000).'.zip';
my $zip = Archive::Zip->new();
$zip->addTree($tempexport);
my $imszip = '/home/httpd/'.$imszipfile;
if ($zip->writeToFileNamed($imszip) == AZ_OK) {
$discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive[_2]',
'<a href="'.$imszipfile.'">','</a>').'<br />';
} else {
$discussion .= &mt('Failed to create zip file').'<br />';
}
if ($copyresult) {
$discussion .= '<span class="LC_error">'.
&mt('The following errors occurred during export:').
'</span><br />'.$copyresult;
}
} else {
$discussion .= '<p class="LC_error">'.
&mt('Unfortunately you will not be able to retrieve an archive of the discussion posts at this time, because there was a problem creating the zip file.').'</p>';
}
}
} else {
$discussion .= '<p class="LC_error">'.
&mt('Unfortunately you will not be able to retrieve an archive of the discussion posts at this time, because there was a problem creating a manifest file.').'</p>';
}
return $discussion;
}
}
if ($discussiononly) {
my $now = time;
my $attachnum = 0;
my $currnewattach = [];
my $currdelold = [];
my $comment = '';
my $subject = '';
if ($env{'form.origpage'}) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
$subject = &unescape($env{'form.subject'});
$comment = &unescape($env{'form.comment'});
my @keepold = ();
&process_attachments($currnewattach,$currdelold,\@keepold);
if (@{$currnewattach} > 0) {
$attachnum += @{$currnewattach};
}
}
if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
if (($group ne '') && ($mode eq 'board')) {
if ((&check_group_priv($group,'pgd') eq 'ok') &&
($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
$discussion .=
&postingform_display($mode,$ressymb,$now,$subject,
$comment,$outputtarget,$attachnum,
$currnewattach,$currdelold,
$group,$crstype);
}
} else {
if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$discussion.=
&postingform_display($mode,$ressymb,$now,$subject,
$comment,$outputtarget,$attachnum,
$currnewattach,$currdelold,'',$crstype);
} else {
$discussion.= '<span class="LC_feedback_link">'.
&mt('This discussion is closed.').'</span>';
}
}
}
if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
$discussion.= '<span class="LC_feedback_link">'.
&mt('This discussion is closed.').'</span>';
}
} elsif ($outputtarget ne 'tex') {
unless ($nofooter) {
$discussion.='<div class="LC_feedback_link">';
unless ($nodisclink) {
if (&discussion_open($status) &&
&Apache::lonnet::allowed('pch',
$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$discussion.= &send_feedback_link($ressymb);
if ($env{'request.role.adv'}) {
my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
if (defined($close) && $close ne '' && $close < time) {
if ($canvote eq 'notended') {
$discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
&Apache::lonnet::plaintext('st',$crstype));
} else {
$discussion .= ' '.&mt('(Closed for [_1] roles)',
&Apache::lonnet::plaintext('st',$crstype));
}
}
}
} else {
$discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
}
}
unless ($nofdbklink) {
$discussion.= &send_message_link($ressymb);
}
$discussion.='</div>';
}
}
return $discussion;
}
sub check_menucoll {
my ($nofooter,$nodisclink,$nofdbklink);
my ($menucoll,$deeplinkmenu,$menuref) = &Apache::loncommon::menucoll_in_effect();
if ($menucoll) {
if (ref($menuref) eq 'HASH') {
if ($menuref->{'foot'} eq 'n') {
$nofooter = 1;
} else {
unless ($menuref->{'disc'}) {
$nodisclink = 1;
}
unless ($menuref->{'fdbk'}) {
$nofdbklink = 1;
}
}
}
}
return ($nofooter,$nodisclink,$nofdbklink);
}
sub can_see_hidden {
my ($mode,$ressymb,$feedurl,$group,$cdom,$cnum,$crs) = @_;
my $seehidden;
if ($env{'request.course.id'}) {
unless ($cdom ne '' && $cnum ne '') {
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
$cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
}
if ($crs eq '') {
$crs = '/'.$env{'request.course.id'};
if ($env{'request.course.sec'}) {
$crs.='_'.$env{'request.course.sec'};
}
$crs=~s{_}{/}g;
}
if ($mode eq '') {
$mode='board';
if ($feedurl =~ /$LONCAPA::assess_re/) {
$mode='problem';
}
}
if (($group ne '') && ($mode eq 'board') &&
($ressymb =~ m{^bulletin___\d+\Q___adm/wrapper/adm/$cdom/$cnum/\E\d+/bulletinboard$})) {
if (&check_group_priv($group,'dgp') eq 'ok') {
$seehidden = 1;
}
} else {
$seehidden=&Apache::lonnet::allowed('rin',$crs);
}
}
return $seehidden;
}
sub discussion_link {
my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
if ($flag) { $link .= '&previous='.$prev; }
if ($adds) { $link .= $adds; }
my $width=600;
my $height=600;
if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
$width=300;
$height=200;
}
return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
}
sub send_feedback_link {
my ($ressymb) = @_;
return '<span class="LC_feedback_link">'.
&discussion_link($ressymb,
'<img alt="" class="LC_noBorder" src="'.
&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
'" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
'replydisc').
'</span>';
}
sub send_message_link {
my ($ressymb) = @_;
my $output = '<span class="LC_message_link">'.
&discussion_link($ressymb,
'<img alt="" class="LC_noBorder" src="'.
&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
'" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
'sendmessageonly').
'</span>';
return $output;
}
sub action_links_bar {
my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp,
$seehidden) = @_;
my $discussion = '<tr><td colspan="'.$colspan.'">'.
'<table width="100%"><tr>'.
'<td class="LC_disc_action_left">';
my $escsymb=&escape($ressymb);
if ($visible) {
$discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .= &group_args($group);
$discussion .='">'.&mt('Threaded View').'</a> '.
'<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .= &group_args($group);
$discussion .='">'.&mt('Chronological View').'</a> ';
my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
if ($newpostsflag) {
$otherviewurl .= '&previous='.$prevread;
}
$otherviewurl .= &group_args($group);
$discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
$discussion .= '<br />';
}
$discussion .='<a href="/adm/feedback?export='.$escsymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .= &group_args($group);
$discussion .= '">'.&mt('Export').'</a>';
if ($seehidden) {
$discussion .= ' ';
$discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .= &group_args($group);
$discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
}
$discussion.='</td>';
if ($newpostsflag) {
if (!$markondisp) {
$discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
$discussion .= &group_args($group);
$discussion .= '">'.
&mt('My general preferences on what is marked as NEW').
'</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
$discussion .= &group_args($group);
$discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
} else {
$discussion .= '<td> </td>';
}
} else {
$discussion .= '<td> </td>';
}
$discussion .= '</tr></table></td></tr>';
return $discussion;
}
sub postingform_display {
my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
$currnewattach,$currdelold,$group,$crstype) = @_;
my $newattachmsg;
my %lt = &Apache::lonlocal::texthash(
'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
'title' => 'Title',
'podi' => 'Post Discussion',
'poan' => 'Post Anonymous Discussion',
'newa' => 'New attachments',
);
if ($crstype eq 'Community') {
$lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
}
my ($postingform,$textareaclass);
if (&Apache::lonhtmlcommon::htmlareabrowser()) {
$postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
$textareaclass = 'class="LC_richDefaultOff"';
if ($env{'request.course.id'}) {
unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
undef($textareaclass);
}
}
}
my $postanon;
if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$postanon = '<input type="submit" name="anondiscuss" value="'.$lt{'poan'}.'" />';
}
$postingform .= (<<ENDDISCUSS);
<form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
$postanon<input type="hidden" name="symb" value="$ressymb" />
<input type="hidden" name="sendit" value="true" />
<input type="hidden" name="timestamp" value="$now" />
<a name="newpost"></a>
<font size="1">$lt{'note'}</font><br />
<b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
<textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
ENDDISCUSS
if ($env{'form.origpage'}) {
$postingform .= '<input type="hidden" name="origpage" value="'.
$env{'form.origpage'}.'" />'."\n";
foreach my $att (@{$currnewattach}) {
$postingform .= '<input type="hidden" name="currnewattach" '.
'value="'.$att.'" />'."\n";
}
}
if (exists($env{'form.ref'})) {
$postingform .= '<input type="hidden" name="ref" value="'.
$env{'form.ref'}.'" />';
}
if ($group ne '') {
$postingform .='<input type="hidden" name="group" value="'.$group.'" />';
}
my $blockblog = &Apache::loncommon::blocking_status('blogs');
if (!$blockblog) {
$postingform .= &add_blog_checkbox($crstype);
}
$postingform .= "</form>\n";
$postingform .= &generate_attachments_button('',$attachnum,$ressymb,
$now,$currnewattach,
$currdelold,'',$mode,
$blockblog);
if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
$newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
if (@{$currnewattach} > 1) {
$newattachmsg .= '<ol>';
foreach my $item (@{$currnewattach}) {
$item =~ m#.*/([^/]+)$#;
$newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
}
$newattachmsg .= '</ol>'."\n";
} else {
$$currnewattach[0] =~ m#.*/([^/]+)$#;
$newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
}
}
$postingform .= $newattachmsg;
$postingform .= &generate_preview_button();
return $postingform;
}
sub build_posting_display {
my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$seehidden,$canvote,$prevread,$sortposts,$ressymb,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
my @original=();
my @index=();
my $skip_group_check = 0;
my $symb=&Apache::lonenc::check_decrypt($ressymb);
my $escsymb=&escape($ressymb);
# These are the discussion contributions
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
if ($seeid || $canvote) {
# And these are the likes/unlikes
%likes=&Apache::lonnet::dump('disclikes',
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'},
'^'.$symb.':');
# Array with likes to figure out averages, etc.
@theselikes=();
# Hashes containing likes and unlikes for this user.
%userlikes=();
%userunlikes=();
}
# Is the user allowed to see the real name behind anonymous postings?
my $see_anonymous =
&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
$skip_group_check = 1;
}
# Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
my (%deletions,%hiddens);
if ($contrib{'deleted'}) {
my $deleted = $contrib{'deleted'};
$deleted =~ s/^\.//;
$deleted =~ s/\.$//;
%deletions = map { $_ => 1 } (split(/\.\./,$deleted));
}
if ($contrib{'hidden'}) {
my $hidden = $contrib{'hidden'};
$hidden =~ s/^\.//;
$hidden =~ s/\.$//;
%hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
}
# Versions if store/restore are used to actually store the messages.
if ($contrib{'version'}) {
my $oldest = $contrib{'1:timestamp'};
if ($prevread eq '0') {
$prevread = $oldest-1;
}
my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
if ($sortposts) {
($skiptest,$roleregexp,$secregexp,$statusregexp) =
&filter_regexp($rolefilter,$sectionpick,$statusfilter);
$rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
}
my %votestyle;
if ($seeid || $canvote) {
# We need to go through this twice, first to get the likes/dislikes, then to actually build the display
for (my $id=1;$id<=$contrib{'version'};$id++) {
my $idx=$id;
next if ($contrib{$idx.':deleted'});
next if ($contrib{$idx.':hidden'});
unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
push(@theselikes,$likes{$symb.':'.$idx.':likes'});
if ($likes{$symb.':'.$idx.':likes'} ne '') {
if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
$userlikes{$idx} = 1;
}
}
if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
$userunlikes{$idx} = 1;
}
}
}
}
}
# Figure out average likes and standard deviation if there are enough
# discussions to warrant that
my $ave=0;
my $stddev=10000;
if ($#theselikes>1) {
my $sum=0;
my $num=$#theselikes+1;
foreach my $thislike (@theselikes) {
$sum+=$thislike;
}
$ave=$sum/$num;
my $sumsq=0;
foreach my $thislike (@theselikes) {
$sumsq+=($thislike-$ave)*($thislike-$ave);
}
$stddev=sqrt($sumsq/$num);
}
# Now we know the average likes $ave and the standard deviation $stddev
# Get the boundaries for markup
$oneplus=$ave+$stddev;
$twoplus=$ave+2.*$stddev;
$oneminus=$ave-$stddev;
$twominus=$ave-2.*$stddev;
if ($#theselikes>1) {
foreach my $class ('twoplus','oneplus','zero','oneminus','twominus') {
my $fontstyle = $env{'course.'.$env{'request.course.id'}.'.discussion_post_fonts_'.$class};
if ($fontstyle ne '') {
my ($size,$weight,$style,$other) = split(/,/,$fontstyle);
if ($size ne '') {
$votestyle{$class} .= 'font-size: '.$size.';';
}
if ($weight ne '') {
$votestyle{$class} .= 'font-weight: '.$weight.';';
}
if ($style ne '') {
$votestyle{$class} .= 'font-style: '.$style.';';
}
if ($other ne '') {
$votestyle{$class} .= $other;
}
if ($votestyle{$class} ne '') {
$votestyle{$class} = 'style="'.$votestyle{$class}.'"';
}
}
}
}
}
#
# This is now the real loop. Go through all entries, pick up what we need
#
for (my $id=1;$id<=$contrib{'version'};$id++) {
my $idx=$id;
next if ($contrib{$idx.':deleted'});
next if ($contrib{$idx.':hidden'});
# If we get here, we are actually going to display the message - we don't know where and we don't know if we display
# previous edits, but it counts as one entry
my $posttime = $contrib{$idx.':timestamp'};
if ($prevread <= $posttime) {
$$newpostsflag = 1;
}
my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
my $origindex='0.';
my $numoldver=0;
if ($contrib{$idx.':replyto'}) {
if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
($sortposts eq 'thread') || ($outputtarget eq 'export')) {
# this is a follow-up message
$original[$idx]=$original[$contrib{$idx.':replyto'}];
$$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
$origindex=$index[$contrib{$idx.':replyto'}];
if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
} else {
$original[$idx]=0;
$$depth[$idx]=0;
}
} else {
# this is an original message
$original[$idx]=0;
$$depth[$idx]=0;
}
if ($$replies[$$depth[$idx]]) {
$$replies[$$depth[$idx]]++;
} else {
$$replies[$$depth[$idx]]=1;
}
unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
$$visible++;
if ($contrib{$idx.':history'}) {
if ($contrib{$idx.':history'} =~ /:/) {
my @oldversions = split(/:/,$contrib{$idx.':history'});
$numoldver = @oldversions;
} else {
$numoldver = 1;
}
}
$$current = $numoldver;
my %messages = ();
my %subjects = ();
my %attachtxt = ();
my %allattachments = ();
my ($screenname,$plainname,$showaboutme);
my $sender = &mt('Anonymous');
# Anonymous users getting number within a discussion
# Since idx is in static order, this should give the same sequence every time.
my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
unless ($$anonhash{$key}) {
$anoncnt++;
$$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
}
my ($message,$subject,$vgrlink,$ctlink);
&get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
# Set up for sorting by subject
unless ($outputtarget eq 'export') {
$message=$messages{$numoldver};
$message.=$attachtxt{$numoldver};
$subject=$subjects{$numoldver};
if ($message) {
if ($hiddens{$idx}) {
$message='<font color="#888888">'.$message.'</font>';
if ($studenthidden) {
$message .='<br /><br />Deleted by poster (student).';
}
}
if ($subject eq '') {
if (defined($$subjectsort{'__No subject'})) {
push(@{$$subjectsort{'__No subject'}}, $idx);
} else {
@{$$subjectsort{'__No subject'}} = ("$idx");
}
} else {
if (defined($$subjectsort{$subject})) {
push(@{$$subjectsort{$subject}}, $idx);
} else {
@{$$subjectsort{$subject}} = ("$idx");
}
}
if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
if ($showaboutme) {
$sender = &Apache::loncommon::aboutmewrapper(
$plainname,
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'});
} else {
$sender = $plainname;
}
if ($see_anonymous) {
$sender .= ' ('.$contrib{$idx.':sendername'}.':'.
$contrib{$idx.':senderdomain'}.')';
}
$sender = '<b>'.$sender.'</b>';
if ($contrib{$idx.':anonymous'}) {
$sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
$screenname;
}
if ($see_anonymous) {
$sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
}
# Set up for sorting by domain, then username
unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
%{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
}
if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
} else {
@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
}
# Set up for sorting by last name, then first name
my %names = &Apache::lonnet::get('environment',
['firstname','lastname'],$contrib{$idx.':senderdomain'},
,$contrib{$idx.':sendername'});
my $lastname = $names{'lastname'};
my $firstname = $names{'firstname'};
if ($lastname eq '') {
$lastname = '_';
}
if ($firstname eq '') {
$firstname = '_';
}
unless (defined($$namesort{$lastname})) {
%{$$namesort{$lastname}} = ();
}
if (defined($$namesort{$lastname}{$firstname})) {
push(@{$$namesort{$lastname}{$firstname}}, $idx);
} else {
@{$$namesort{$lastname}{$firstname}} = ("$idx");
}
if ($outputtarget ne 'tex') {
# Add karma stars
my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
for (my $i=1;$i<=$karma;$i++) {
$sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
}
# Can people edit this?
if (&editing_allowed($escsymb.':::'.$idx,$group)) {
if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
$sender.=' '.
&discussion_link($ressymb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
unless ($seehidden) {
my $grpargs = &group_args($group);
$sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
$sender .= '">'.&mt('Delete').'</a>';
}
}
}
if ($seehidden) {
if ($hiddens{$idx}) {
unless ($studenthidden) {
$sender.=' '.
&discussion_link($ressymb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
}
} else {
$sender.=' '.
&discussion_link($ressymb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
}
my $grpargs = &group_args($group);
$sender.=
" <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
$sender .= &mt('Delete').'</a>';
}
}
} else {
if ($screenname) {
$sender='<i>'.$screenname.'</i>';
} else {
$sender='<i>'.$$anonhash{$key}.'</i>';
}
$sender = '<b>'.$sender.'</b>';
# Set up for sorting by domain, then username for anonymous
unless (defined($$usernamesort{'__anon'})) {
%{$$usernamesort{'__anon'}} = ();
}
if (defined($$usernamesort{'__anon'}{'__anon'})) {
push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
} else {
@{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
}
# Set up for sorting by last name, then first name for anonymous
unless (defined($$namesort{'__anon'})) {
%{$$namesort{'__anon'}} = ();
}
if (defined($$namesort{'__anon'}{'__anon'})) {
push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
} else {
@{$$namesort{'__anon'}{'__anon'}} = ("$idx");
}
}
if ($outputtarget ne 'tex') {
if (&discussion_open($status)) {
if (($group ne '') &&
(&check_group_priv($group,'pgd') eq 'ok')) {
$sender.=' '.
&discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
} elsif (&Apache::lonnet::allowed('pch',
$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.
$env{'request.course.sec'}:''))) {
$sender.=' '.
&discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
}
}
if ($viewgrades) {
$vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
}
if ($$dischash{$readkey}=~/\.$idx\./) {
$ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
} else {
$ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
}
}
}
#figure out at what position this needs to print
}
if ($outputtarget eq 'export' || $message) {
my $thisindex=$idx;
if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
($sortposts eq 'thread') || ($outputtarget eq 'export')) {
$thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
}
$$alldiscussion{$thisindex}=$idx;
$$shown{$idx} = 0;
$index[$idx]=$thisindex;
}
if ($outputtarget eq 'export') {
%{$$imsitems{$idx}} = ();
$$imsitems{$idx}{'isvisible'}='true';
if ($hiddens{$idx}) {
$$imsitems{$idx}{'isvisible'}='false';
}
$$imsitems{$idx}{'title'}=$subjects{$numoldver};
$$imsitems{$idx}{'message'}=$messages{$numoldver};
$$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
$$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
$$imsitems{$idx}{'sender'}=$plainname.' ('.
$contrib{$idx.':sendername'}.':'.
$contrib{$idx.':senderdomain'}.')';
$$imsitems{$idx}{'isanonymous'}='false';
if ($contrib{$idx.':anonymous'}) {
$$imsitems{$idx}{'isanonymous'}='true';
}
$$imsitems{$idx}{'currversion'}=$numoldver;
%{$$imsitems{$idx}{'allattachments'}}=%allattachments;
unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
$$shown{$idx} = 1;
}
} else {
if ($message) {
my $spansize = 2;
my ($uname,$udom);
if ($showonlyunread && $prevread > $posttime) {
$$notshown{$idx} = 1;
} elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
$$notshown{$idx} = 1;
} else {
# apply filters
$uname = $contrib{$idx.':sendername'};
$udom = $contrib{$idx.':senderdomain'};
my $poster = $uname.':'.$udom;
if ($env{'form.totposters'} ne '') {
if ($totposters == 0) {
$$shown{$idx} = 0;
} elsif ($totposters > 0) {
if (grep/^$poster$/,@{$posters}) {
$$shown{$idx} = 1;
}
}
} elsif ($sortposts) {
if ($skiptest) {
$$shown{$idx} = 1;
} else {
foreach my $role (@{$$roleinfo{$poster}}) {
if ($role =~ /^cc:/) {
my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
if ($role =~ /$cc_regexp/) {
$$shown{$idx} = 1;
last;
}
} elsif ($role =~ /^$rolematch$/) {
$$shown{$idx} = 1;
last;
}
}
}
if ($$shown{$idx} && !$skip_group_check) {
my $showflag = 0;
if (ref($$classgroups{$poster}{active}) eq 'HASH') {
foreach my $grp (@{$grouppick}) {
if (grep/^\Q$grp\E$/,
keys(%{$$classgroups{$poster}{active}})) {
$showflag = 1;
last;
}
}
}
if ($showflag) {
$$shown{$idx} = 1;
} else {
$$shown{$idx} = 0;
}
}
} else {
$$shown{$idx} = 1;
}
}
unless ($$notshown{$idx} == 1) {
if ($prevread > 0 && $prevread <= $posttime) {
$$newitem{$idx} = 1;
$$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
} else {
$$newitem{$idx} = 0;
}
$$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
$sender.' '.$vgrlink.' ('.
&Apache::lonlocal::locallocaltime($posttime).')';
if ($$dischash{$toggkey}) {
$$discussionitems[$idx].=' '.$ctlink;
}
my $thislikes=$likes{$symb.':'.$idx.':likes'};
my $likestyle;
if ($seeid || $canvote) {
# Figure out size based on likes
my $class = 'zero';
my $thislikes=$likes{$symb.':'.$idx.':likes'};
if ($thislikes>$twoplus) {
$class = 'twoplus';
} elsif ($thislikes>$oneplus) {
$class = 'oneplus';
}
if ($thislikes<$twominus) {
$class = 'twominus';
} elsif ($thislikes<$oneminus) {
$class = 'oneminus';
}
$likestyle = $votestyle{$class};
}
# Actually glue in the message itself
$$discussionitems[$idx].= '<br /><blockquote>'.
"<div $likestyle>".
$message.
'</div></blockquote>';
if ($canvote) {
my $ownpost;
if (($uname eq $env{'user.name'}) &&
($udom eq $env{'user.domain'})) {
$ownpost = 1;
}
# Put in the like and unlike buttons
if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
my $novote;
if ($ownpost) {
$novote = &mt('No voting for your own posts.');
} else {
$novote = &mt('No voting for hidden posts.');
}
&html_escape(\$novote);
$$discussionitems[$idx].=
'<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
'<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
'<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
} else {
if ($userlikes{$idx}) {
$$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
} else {
$$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
}
if ($userunlikes{$idx}) {
$$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
} else {
$$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
}
}
}
if ($seeid || $canvote) {
my $thislikes=$likes{$symb.':'.$idx.':likes'};
if ($thislikes>0) {
$$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
} elsif ($thislikes<0) {
$$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
}
}
# If there is any history to this post, inform the reader
if ($contrib{$idx.':history'}) {
my @postversions = ();
$$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
if ($seehidden) {
$$discussionitems[$idx] .= ' '.
&discussion_link($ressymb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
}
$$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
if ($contrib{$idx.':history'} =~ m/:/) {
@postversions = split(/:/,$contrib{$idx.':history'});
} else {
@postversions = ("$contrib{$idx.':history'}");
}
for (my $i=0; $i<@postversions; $i++) {
my $version = $i+1;
$$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
}
}
# end of unless ($$notshown ...)
}
# end of if ($message) ...
}
# end of the else-branch of target being export
}
# end of unless hidden or deleted
}
# end of the loop over all discussion entries
}
# end of "if there actually are any discussions
}
# end of subroutine "build_posting_display"
}
sub filter_regexp {
my ($rolefilter,$sectionpick,$statusfilter) = @_;
my ($roleregexp,$secregexp,$statusregexp);
my $skiptest = 1;
if (@{$rolefilter} > 0) {
my @okrolefilter = ();
foreach my $role (@{$rolefilter}) {
unless ($role eq '') {
push(@okrolefilter, $role);
}
}
if (@okrolefilter > 0) {
if (grep/^all$/,@okrolefilter) {
$roleregexp='[^:]+';
} else {
if (@okrolefilter == 1) {
$roleregexp=$okrolefilter[0];
} else {
$roleregexp='('.join('|',@okrolefilter).')';
}
$skiptest = 0;
}
}
}
if (@{$sectionpick} > 0) {
my @oksectionpick = ();
foreach my $sec (@{$sectionpick}) {
unless ($sec eq '') {
push(@oksectionpick, $sec);
}
}
if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
if (@oksectionpick == 1) {
$secregexp = $oksectionpick[0];
} else {
$secregexp .= '('.join('|',@oksectionpick).')';
}
$skiptest = 0;
} else {
$secregexp .= '[^:]*';
}
}
if (defined($statusfilter) && $statusfilter ne '') {
if ($statusfilter eq 'all') {
$statusregexp = '[^:]+';
} else {
$statusregexp = $statusfilter;
$skiptest = 0;
}
}
return ($skiptest,$roleregexp,$secregexp,$statusregexp);
}
sub get_post_contents {
my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
my $discussion = '';
my $start=$numver;
my $end=$numver + 1;
%{$$imsfiles{$idx}}=();
if ($type eq 'allversions') {
unless($seehidden) {
$discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
return $discussion;
}
}
# $$screenname=&Apache::loncommon::screenname(
# $$contrib{$idx.':sendername'},
# $$contrib{$idx.':senderdomain'});
$$plainname=&Apache::loncommon::nickname(
$$contrib{$idx.':sendername'},
$$contrib{$idx.':senderdomain'});
$$screenname=$$contrib{$idx.':screenname'};
$$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
$$contrib{$idx.':senderdomain'},
'aboutme');
my $sender = $$plainname;
if ($$showaboutme) {
$sender = &Apache::loncommon::aboutmewrapper(
$$plainname,
$$contrib{$idx.':sendername'},
$$contrib{$idx.':senderdomain'});
}
if ($seeid) {
$sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
$$contrib{$idx.':senderdomain'}.')';
}
my $attachmenturls = $$contrib{$idx.':attachmenturl'};
my @postversions = ();
if ($type eq 'allversions' || $type eq 'export') {
$start = 0;
if ($$contrib{$idx.':history'}) {
@postversions = split(/:/,$$contrib{$idx.':history'});
}
&get_post_versions($messages,$$contrib{$idx.':message'},1);
&get_post_versions($subjects,$$contrib{$idx.':subject'},1);
push(@postversions,$$contrib{$idx.':timestamp'});
$end = @postversions;
} else {
&get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
&get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
}
if ($$contrib{$idx.':anonymous'}) {
$sender.=' ['.&mt('anonymous').'] '.$$screenname;
}
if ($type eq 'allversions') {
$discussion=('<b>'.$sender.'</b><br /><ul>');
}
for (my $i=$start; $i<$end; $i++) {
my ($timesent,$attachmsg);
my %currattach = ();
$timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
unless (&contains_block_html($messages->{$i})) {
&newline_to_br(\$messages->{$i});
}
$$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
$$subjects{$i}=~s/\n/\<br \/\>/g;
$$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
if ($attachmenturls) {
&extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
}
if ($type eq 'export') {
$$imsfiles{$idx}{$i} = '';
if ($attachmsg) {
$$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
foreach my $key (sort(keys(%currattach))) {
if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
my $fname = $1.$3.'/'.$4;
$$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
$$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
}
}
}
} else {
if ($attachmsg) {
$$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
} else {
$$attachtxt{$i} = '';
}
}
if ($type eq 'allversions') {
$discussion.= <<"END";
<li><b>$$subjects{$i}</b>, $timesent<br />
$$messages{$i}<br />
$$attachtxt{$i}</li>
END
}
}
if ($type eq 'allversions') {
$discussion.='</ul>';
return $discussion;
} else {
return;
}
}
sub replicate_attachments {
my ($attachrefs,$tempexport) = @_;
my $response;
foreach my $id (keys(%{$attachrefs})) {
if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
my $path = $tempexport;
my $tail = $1.'/'.$2.$4;
my @extras = split(/\//,$tail);
my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
if (!-e $destination) {
my $i= 0;
while ($i<@extras) {
$path .= '/'.$extras[$i];
if (!-e $path) {
mkdir($path,0700);
}
$i ++;
}
my ($content,$rtncode);
my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
if ($uploadreply eq 'ok') {
my $attachcopy;
if ($attachcopy = Apache::File->new('>'.$destination)) {
print $attachcopy $content;
close($attachcopy);
} else {
$response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
}
} else {
&Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
$response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
}
}
}
}
return $response;
}
sub mail_screen {
my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
if (exists($env{'form.origpage'})) {
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
}
my %lt = &Apache::lonlocal::texthash(
'myqu' => 'Question/comment/feedback:',
'reta' => 'Retained attachments',
'atta' => 'Attachment',
);
if ($env{'form.editdisc'} || $env{'form.replydisc'}){
$lt{'myqu'} = &mt('Post Discussion');
}
my $restitle = &get_resource_title($caller_symb,$feedurl);
my $quote='';
my $subject = '';
my $comment = '';
my $prevtag = '';
my $parentmsg = '';
my ($symb,$idx,$attachmenturls);
my $numoldver = 0;
my $attachmsg = '';
my $newattachmsg = '';
my @currnewattach = ();
my @currdelold = ();
my @keepold = ();
my %attachments = ();
my %currattach = ();
my $attachnum = 0;
my $anonchk = (<<END);
function anonchk() {
for (var i=0; i < document.mailform.discuss.length; i++) {
if (document.mailform.discuss[i].checked) {
document.attachment.discuss.value =
document.mailform.discuss[i].value;
}
}
if (document.mailform.blog.checked) {
document.attachment.blog.value = 1;
}
return
}
END
my $anonscript;
if (exists($env{'form.origpage'})) {
$anonscript = (<<END);
function setposttype() {
var disc = "$env{'form.discuss'}";
for (var i=0; i < document.mailform.discuss.length; i++) {
if (disc == document.mailform.discuss[i].value) {
document.mailform.discuss[i].checked = 1;
}
}
var blog = "$env{'form.blog'}";
if (blog == 1) {
document.mailform.blog.checked=1;
}
return
}
END
} else {
$anonscript = (<<END);
function setposttype() {
return
}
END
}
if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
if ($env{'form.replydisc'}) {
($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
} else {
($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
}
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
my $numoldver = 0;
if ($contrib{$idx.':history'}) {
if ($contrib{$idx.':history'} =~ /:/) {
my @oldversions = split(/:/,$contrib{$idx.':history'});
$numoldver = @oldversions;
} else {
$numoldver = 1;
}
}
if ($idx > 0) {
my (%msgversions,%subversions,$htmldecode);
$htmldecode = 0;
if ($env{'form.replydisc'}) {
$htmldecode = 1;
}
&get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
&get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
$numoldver);
$subject = $subversions{$numoldver};
if ($env{'form.replydisc'}) {
$quote = $msgversions{$numoldver};
$subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
} else {
$comment = $msgversions{$numoldver};
}
}
if ($env{'form.editdisc'}) {
$attachmenturls = $contrib{$idx.':attachmenturl'};
if (defined($contrib{$idx.':replyto'})) {
$parentmsg = $contrib{$idx.':replyto'};
}
unless (exists($env{'form.origpage'})) {
my $anonflag = 'nonanon';
if ($contrib{$idx.':anonymous'}) {
$anonflag = 'anon';
}
$anonscript = (<<END);
function setposttype () {
var currtype = "$anonflag";
for (var i=0; i<document.mailform.discuss.length; i++) {
if (document.mailform.elements.discuss[i].value == currtype ) {
document.mailform.elements.discuss[i].checked=1;
}
}
return
}
END
}
}
}
if ($env{'form.previous'}) {
$prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
}
}
if ($env{'form.origpage'}) {
$subject = &unescape($env{'form.subject'});
$comment = &unescape($env{'form.comment'});
&process_attachments(\@currnewattach,\@currdelold,\@keepold);
}
my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
my $send=&mt('Send');
my $alert = &mt('Please select a feedback type.');
&js_escape(\$alert);
my $js= <<END;
<script type="text/javascript">
//<!--
function gosubmit() {
var rec=0;
if (typeof(document.mailform.elements.discuss)!="undefined") {
if (typeof(document.mailform.elements.discuss.length) == "undefined") {
if (document.mailform.elements.discuss.checked ) {
rec=1;
}
} else {
for (var i=0; i<document.mailform.elements.discuss.length; i++) {
if (document.mailform.elements.discuss[i].checked ) {
rec=1;
}
}
}
}
if (typeof(document.mailform.elements.blog)!="undefined") {
if (document.mailform.elements.blog.checked) {
rec=1;
}
}
if (rec) {
if (typeof(document.mailform.onsubmit)=='function') {
document.mailform.onsubmit();
}
document.mailform.submit();
} else {
alert('$alert');
}
}
$anonchk
$anonscript
//-->
</script>
<script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
END
my ($textareaheader,$textareaclass);
if (&Apache::lonhtmlcommon::htmlareabrowser()) {
$textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
$textareaclass = 'class="LC_richDefaultOff"';
if ($env{'request.course.id'}) {
unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
undef($textareaclass);
}
}
}
# Breadcrumbs
my $brcrum = [{'href' => '',
'text' => 'Resource Feedback and Discussion'}];
my %onload = ('onload' => 'window.focus();setposttype();');
my %parms=('add_entries' => \%onload);
if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
my $start_page=
&Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
if ($quote ne '') {
$quote = &HTML::Entities::decode($quote);
unless (&contains_block_html($quote)) {
&newline_to_br(\$quote);
}
$quote=&Apache::lonhtmlcommon::start_pick_box().
&Apache::lonhtmlcommon::row_title(&mt('Quote')).
&Apache::lontexconvert::msgtexconverted($quote).
&Apache::lonhtmlcommon::row_closure(1).
&Apache::lonhtmlcommon::end_pick_box();
}
my $header='';
unless ($env{'form.modal'}) {
$header="<h2><tt>$restitle</tt></h2>";
}
$r->print(<<END);
$start_page
<h1>$lt{'myqu'}</h1>
$header
<form action="/adm/feedback" method="post" name="mailform"
enctype="multipart/form-data">
$prevtag
<input type="hidden" name="postdata" value="$feedurl" />
<input type="hidden" name="modal" value="$env{'form.modal'}" />
END
if ($env{'form.replydisc'}) {
$r->print(<<END);
<input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
END
} elsif ($env{'form.editdisc'}) {
$r->print(<<END);
<input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
<input type="hidden" name="parentmsg" value="$parentmsg" />
END
}
$r->print(<<END);
$options
<br />
END
$r->print(&Apache::lonhtmlcommon::start_pick_box());
$r->print(<<END);
$quote
<p>
$textareaheader
</p>
<p>
$latexHelp
</p>
<p>
END
$r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
$r->print('<input type="text" name="subject" size="30" value="'.
$subject.'" /></p>');
$r->print(&Apache::lonhtmlcommon::row_closure());
$r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
$r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
$textareaclass.'>'.$comment.
'</textarea>');
$r->print(&Apache::lonhtmlcommon::row_closure(1));
$r->print(&Apache::lonhtmlcommon::end_pick_box());
if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
if ($env{'form.origpage'}) {
foreach my $attach (@currnewattach) {
$r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
}
foreach my $oldatt (@currdelold) {
$r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
}
}
if ($env{'form.editdisc'}) {
if ($attachmenturls) {
&extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
$attachnum = scalar(keys(%currattach));
foreach my $key (keys(%currattach)) {
$r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
}
}
}
} else {
$r->print(<<END);
<p>
$lt{'atta'} $attachmaxtext: <input type="file" name="attachment" class="LC_flUpload" />
<input type="hidden" id="LC_free_space" value="131072" />
</p>
END
}
if (exists($env{'form.group'})) {
$r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
}
if (exists($env{'form.ref'})) {
$r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
}
$r->print(<<END);
<input type="hidden" name="sendit" value="1" /><br /><br />
<input type="button" value="$send" onclick='gosubmit();' />
</form>
END
if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
my $now = time;
my $ressymb = $symb;
&Apache::lonenc::check_encrypt(\$ressymb);
my $postidx = '';
if ($env{'form.editdisc'}) {
$postidx = $idx;
}
if (@currnewattach > 0) {
$attachnum += @currnewattach;
}
my $blockblog = &Apache::loncommon::blocking_status('blogs');
if ($attachnum > 0) {
if (@currnewattach > 0) {
$newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
if (@currnewattach > 1) {
$newattachmsg .= '<ol>';
foreach my $item (@currnewattach) {
$item =~ m#.*/([^/]+)$#;
$newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
}
$newattachmsg .= '</ol>'."\n";
} else {
$currnewattach[0] =~ m#.*/([^/]+)$#;
$newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
}
}
if ($attachmsg) {
$r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
}
if ($newattachmsg) {
$r->print("$newattachmsg");
}
}
$r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
}
$r->print(&generate_preview_button().
&Apache::loncommon::end_page());
}
sub print_display_options {
my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my $function = &Apache::loncommon::get_users_function();
my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
$env{'user.domain'});
my %lt = &Apache::lonlocal::texthash(
'pref' => 'Display Preference',
'curr' => 'Current setting ',
'actn' => 'Action',
'deff' => 'Default for all discussions',
'prca' => 'Preferences can be set for this discussion that determine ....',
'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
'unwh' => 'Under what circumstances posts are identified as "NEW", and',
'wipa' => 'Whether individual posts can be marked as read/unread',
'allposts' => 'All posts',
'unread' => 'New posts only',
'unmark' => 'Posts not marked read',
'ondisp' => 'Once displayed',
'onmark' => 'Once marked not NEW',
'toggon' => 'Shown',
'toggoff' => 'Not shown',
'disa' => 'Posts displayed?',
'npmr' => 'New posts cease to be identified as "NEW"?',
'dotm' => 'Option to mark each post as read/unread?',
'chgt' => 'Change to ',
'mkdf' => 'Set to ',
'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
'ywbr' => 'You will be returned to the previous page if you click OK.'
);
my %js_lt = &Apache::lonlocal::texthash(
'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
'ywbr' => 'You will be returned to the previous page if you click OK.'
);
&js_escape(\%js_lt);
my $dispchangeA = $lt{'unread'};
my $dispchangeB = $lt{'unmark'};
my $markchange = $lt{'ondisp'};
my $toggchange = $lt{'toggon'};
my $currdisp = $lt{'allposts'};
my $currmark = $lt{'onmark'};
my $discdisp = 'allposts';
my $discmark = 'onmark';
my $currtogg = $lt{'toggoff'};
my $disctogg = 'toggoff';
if ($dispchgA eq 'allposts') {
$dispchangeA = $lt{'allposts'};
$currdisp = $lt{'unread'};
$discdisp = 'unread';
}
if ($markchg eq 'markonread') {
$markchange = $lt{'onmark'};
$currmark = $lt{'ondisp'};
$discmark = 'ondisp';
}
if ($dispchgB eq 'onlyunread') {
$dispchangeB = $lt{'unread'};
$currdisp = $lt{'unmark'};
$discdisp = 'unmark';
}
if ($toggchg eq 'toggoff') {
$toggchange = $lt{'toggoff'};
$currtogg = $lt{'toggon'};
$disctogg = 'toggon';
}
my $js = <<END;
<script type="text/javascript">
function discdispChk(caller) {
var disctogg = '$toggchg'
if (caller == 0) {
if (document.modifydisp.discdisp[0].checked == true) {
if (document.modifydisp.discdisp[1].checked == true) {
document.modifydisp.discdisp[1].checked = false
}
}
}
if (caller == 1) {
if (document.modifydisp.discdisp[1].checked == true) {
if (document.modifydisp.discdisp[0].checked == true) {
document.modifydisp.discdisp[0].checked = false
}
if (disctogg == 'toggon') {
document.modifydisp.disctogg.checked = true
}
if (disctogg == 'toggoff') {
document.modifydisp.disctogg.checked = false
}
}
}
if (caller == 2) {
var dispchgB = '$dispchgB'
if (disctogg == 'toggoff') {
if (document.modifydisp.disctogg.checked == true) {
if (dispchgB == 'onlyunmark') {
document.modifydisp.discdisp[1].checked = false
}
}
}
}
}
function setDisp() {
var prev = "$previous"
var chktotal = 0
if (document.modifydisp.discdisp[0].checked == true) {
document.modifydisp.$dispchgA.value = "$symb"
chktotal ++
}
if (document.modifydisp.discdisp[1].checked == true) {
document.modifydisp.$dispchgB.value = "$symb"
chktotal ++
}
if (document.modifydisp.discmark.checked == true) {
document.modifydisp.$markchg.value = "$symb"
chktotal ++
}
if (document.modifydisp.disctogg.checked == true) {
document.modifydisp.$toggchg.value = "$symb"
chktotal ++
}
if (chktotal > 0) {
document.modifydisp.submit()
} else {
if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) {
if (prev > 0) {
location.href = "$feedurl?previous=$previous"
} else {
location.href = "$feedurl"
}
}
}
}
</script>
END
my $start_page =
&Apache::loncommon::start_page('Discussion display options',$js);
my $end_page =
&Apache::loncommon::end_page();
$r->print(<<END);
$start_page
<form name="modifydisp" method="post" action="/adm/feedback">
$lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
<br />
END
$r->print(&Apache::loncommon::start_data_table());
$r->print(<<END);
<tr>
<th>$lt{'pref'}</td>
<th>$lt{'curr'}</td>
<th>$lt{'actn'}?</td>
</tr>
END
$r->print(&Apache::loncommon::start_data_table_row());
$r->print(<<END);
<td>$lt{'disa'}</td>
<td>$lt{$discdisp}</td>
<td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
<br />
<label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
</td>
END
$r->print(&Apache::loncommon::end_data_table_row());
$r->print(&Apache::loncommon::start_data_table_row());
$r->print(<<END);
<td>$lt{'npmr'}</td>
<td>$lt{$discmark}</td>
<td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
END
$r->print(&Apache::loncommon::end_data_table_row());
$r->print(&Apache::loncommon::start_data_table_row());
$r->print(<<END);
<td>$lt{'dotm'}</td>
<td>$lt{$disctogg}</td>
<td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
END
my $save = &mt('Save');
$r->print(&Apache::loncommon::end_data_table_row());
$r->print(&Apache::loncommon::end_data_table());
$r->print(<<END);
<br />
<br />
<input type="hidden" name="symb" value="$symb" />
<input type="hidden" name="previous" value="$previous" />
<input type="hidden" name="$dispchgA" value="" />
<input type="hidden" name="$dispchgB" value="" />
<input type="hidden" name="$markchg" value="" />
<input type="hidden" name="$toggchg" value="" />
<input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
END
if (exists($env{'form.group'})) {
$r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
}
if (exists($env{'form.ref'})) {
$r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
}
$r->print("
<br />
<br />
</form>
$end_page
");
return;
}
sub print_sortfilter_options {
my ($r,$symb,$previous,$feedurl) = @_;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
&Apache::lonenc::check_encrypt(\$symb);
my @sections;
my $section_sel = '';
my $numvisible = 5;
my @groups;
my $group_sel = '';
my $numgroupvis = 5;
my %sectioncount = &Apache::loncommon::get_sections();
my @courseroles = qw(st ad ep ta in);
my $crstype = &Apache::loncommon::course_type();
my $ccrole = 'cc';
if ($crstype eq 'Community') {
$ccrole = 'co';
}
push(@courseroles,$ccrole);
if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
@sections = ('all',$env{'request.course.sec'});
$numvisible = 2;
} else {
@sections = sort {$a cmp $b} keys(%sectioncount);
if (scalar(@sections) < 4) {
$numvisible = scalar(@sections) + 1;
}
unshift(@sections,'all'); # Put 'all' at the front of the list
}
foreach my $sec (@sections) {
$section_sel .= " <option value=\"$sec\">$sec</option>\n";
}
if (&check_group_priv() eq 'ok') {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
@groups = sort {$a cmp $b} keys(%curr_groups);
if (scalar(@groups) < 4) {
$numgroupvis = scalar(@groups) + 1;
}
unshift(@groups,'all'); # Put 'all' at the front of the list
} else {
my @coursegroups = split(/:/,$env{'request.course.groups'});
if (@coursegroups > 0) {
@coursegroups = sort {$a cmp $b} @coursegroups;
@groups = ('all',@coursegroups);
if (scalar(@groups) < 4) {
$numgroupvis = scalar(@groups) + 1;
}
} else {
@groups = ('all');
$numgroupvis = 1;
}
}
foreach my $group (@groups) {
$group_sel .= " <option value=\"$group\">$group</option>\n";
}
my $function = &Apache::loncommon::get_users_function();
my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
$env{'user.domain'});
my %lt = &Apache::lonlocal::texthash(
'diop' => 'Display Options',
'curr' => 'Current setting ',
'actn' => 'Action',
'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
'soor' => 'Sort order',
'spur' => 'Specific user roles',
'sprs' => 'Specific role status',
'spse' => 'Specific sections',
'spgr' => 'Specific groups',
'psub' => 'Pick specific users (by name)',
'shal' => 'Show a list of current posters',
'stor' => 'Save changes',
);
my %sort_types = ();
my %role_types = ();
my %status_types = ();
&sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
my $js = <<END;
<script type="text/javascript">
function verifyFilter() {
var rolenum = 0
for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
if (document.modifyshown.rolefilter.options[i].selected == true) {
rolenum ++
}
}
if (rolenum == 0) {
document.modifyshown.rolefilter.options[0].selected = true
}
var secnum = 0
for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
if (document.modifyshown.sectionpick.options[i].selected == true) {
secnum ++
}
}
if (secnum == 0) {
document.modifyshown.sectionpick.options[0].selected = true
}
var grpnum = 0
for (var i=0; i<document.modifyshown.grouppick.length; i++) {
if (document.modifyshown.grouppick.options[i].selected == true) {
grpnum ++
}
}
if (grpnum == 0) {
document.modifyshown.grouppick.options[0].selected = true
}
document.modifyshown.submit();
}
</script>
END
my $start_page=
&Apache::loncommon::start_page('Discussion options',$js);
my $end_page=
&Apache::loncommon::end_page();
$r->print(<<END);
$start_page
<form name="modifyshown" method="post" action="/adm/feedback">
<b>$lt{'diso'}</b><br/> $lt{'prca'}
<br />
<table border="0">
<tr>
<th>$lt{'soor'}</th>
<th> </th>
<th>$lt{'sprs'}</th>
<th> </th>
<th>$lt{'spur'}</th>
<th> </th>
<th>$lt{'spse'}</th>
<th> </th>
<th>$lt{'spgr'}</th>
<th> </th>
<th>$lt{'psub'}</th>
</tr>
<tr>
<td align="center" valign="top">
<select name="sortposts">
<option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
<option value="descdate">$sort_types{'descdate'}</option>
<option value="thread">$sort_types{'thread'}</option>
<option value="subject">$sort_types{'subject'}</option>
<option value="username">$sort_types{'username'}</option>
<option value="lastfirst">$sort_types{'lastfirst'}</option>
</select>
</td>
<td> </td>
<td align="center" valign="top">
<select name="statusfilter">
<option value="all" selected="selected">$status_types{'all'}</option>
<option value="Active">$status_types{'Active'}</option>
<option value="Expired">$status_types{'Expired'}</option>
<option value="Future">$status_types{'Future'}</option>
</select>
</td>
<td> </td>
<td align="center" valign="top">
<select name="rolefilter" multiple="multiple" size="5">
<option value="all">$role_types{'all'}</option>
<option value="st">$role_types{'st'}</option>
<option value="$ccrole">$role_types{$ccrole}</option>
<option value="in">$role_types{'in'}</option>
<option value="ta">$role_types{'ta'}</option>
<option value="ep">$role_types{'ep'}</option>
<option value="ad">$role_types{'ad'}</option>
<option value="cr">$role_types{'cr'}</option>
</select>
</td>
<td> </td>
<td align="center" valign="top">
<select name="sectionpick" multiple="multiple" size="$numvisible">
$section_sel
</select>
</td>
<td> </td>
<td align="center" valign="top">
<select name="grouppick" multiple="multiple" size="$numvisible">
$group_sel
</select>
</td>
<td> </td>
<td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
</tr>
</table>
<br />
<input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
<input type="hidden" name="modal" value="$env{'form.modal'}" />
<input type="hidden" name="previous" value="$previous" />
<input type="hidden" name="applysort" value="$symb" />
<input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
END
if (exists($env{'form.group'})) {
$r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
}
if (exists($env{'form.ref'})) {
$r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
}
$r->print("
<br />
<br />
</form>
$end_page
");
}
sub print_showposters {
my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
&Apache::lonenc::check_encrypt(\$symb);
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my $group = $env{'form.group'};
my $ressymb = &wrap_symb($symb);
my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
my %namesort = ();
my %postcounts = ();
my %lt = &Apache::lonlocal::texthash(
sele => 'Select',
full => 'Fullname',
usdo => 'Username:domain',
post => 'Posts',
);
if ($contrib{'version'}) {
for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
my $hidden=($contrib{'hidden'}=~/\.$idx\./);
my $deleted=($contrib{'deleted'}=~/\.$idx\./);
unless ((($hidden) && (!$seehidden)) || ($deleted)) {
if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
my $lastname = $names{'lastname'};
my $firstname = $names{'firstname'};
if ($lastname eq '') {
$lastname = '_';
}
if ($firstname eq '') {
$firstname = '_';
}
unless (defined($namesort{$lastname})) {
%{$namesort{$lastname}} = ();
}
my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
$postcounts{$poster} ++;
if (defined($namesort{$lastname}{$firstname})) {
if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
push(@{$namesort{$lastname}{$firstname}}, $poster);
}
} else {
@{$namesort{$lastname}{$firstname}} = ("$poster");
}
}
}
}
}
my $start_page = &Apache::loncommon::start_page('Discussion options');
my $table_start =&Apache::loncommon::start_data_table();
$r->print(<<END);
$start_page
<form name="pickpostersform" method="post" action="">
<br />
$table_start
<tr>
<th>#</th>
<th>$lt{'sele'}</th>
<th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
<th>$lt{'post'}</th>
</tr>
END
my $count = 0;
foreach my $last (sort(keys(%namesort))) {
foreach my $first (sort(keys(%{$namesort{$last}}))) {
foreach my $user (sort(@{$namesort{$last}{$first}})) {
my ($uname,$udom) = split(/:/,$user);
if (!$uname || !$udom) {
next;
} else {
$count ++;
$r->print(&Apache::loncommon::start_data_table_row().
'<td align="right">'.$count.'</td>
<td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
<td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
<td>'.$postcounts{$user}.'</td>'.
&Apache::loncommon::end_data_table_row());
}
}
}
}
$r->print(&Apache::loncommon::end_data_table());
my $end_page = &Apache::loncommon::end_page();
$r->print(<<END);
<br />
<input type="hidden" name="sortposts" value="$sortposts" />
<input type="hidden" name="modal" value="$env{'form.modal'}" />
<input type="hidden" name="userpick" value="$symb" />
<input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
</form>
$end_page
END
}
sub get_post_versions {
my ($versions,$incoming,$htmldecode,$numver) = @_;
if ($incoming =~ /^<version num="0">/) {
my $p = HTML::LCParser->new(\$incoming);
my $done = 0;
while ( (my $token = $p->get_tag("version")) && (!$done)) {
my $num = $token->[1]{num};
my $text = $p->get_text("/version");
if (defined($numver)) {
if ($num == $numver) {
if ($htmldecode) {
$text = &HTML::Entities::decode($text);
}
$$versions{$numver}=$text;
$done = 1;
}
} else {
if ($htmldecode) {
$text = &HTML::Entities::decode($text);
}
$$versions{$num}=$text;
}
}
} else {
if (!defined($numver)) {
$numver = 0;
}
if ($htmldecode) {
$$versions{$numver} = $incoming;
} else {
$$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
}
}
return;
}
sub get_post_attachments {
my ($attachments,$attachmenturls) = @_;
my $num;
if ($attachmenturls =~ m/^<attachment id="0">/) {
my $p = HTML::LCParser->new(\$attachmenturls);
while (my $token = $p->get_tag("attachment","filename","post")) {
if ($token->[0] eq "attachment") {
$num = $token->[1]{id};
%{$$attachments{$num}} =();
} elsif ($token->[0] eq "filename") {
$$attachments{$num}{'filename'} = $p->get_text("/filename");
} elsif ($token->[0] eq "post") {
my $id = $token->[1]{id};
$$attachments{$num}{$id} = $p->get_text("/post");
}
}
} else {
%{$$attachments{'0'}} = ();
$$attachments{'0'}{'filename'} = $attachmenturls;
$$attachments{'0'}{'0'} = 'n';
}
return;
}
sub fail_redirect {
my ($r,$feedurl,$delay) = @_;
if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
my %lt = &Apache::lonlocal::texthash(
'sorr' => 'Sorry, no recipients ...',
);
my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
my %parms=('only_body' => 1);
if ($delay !~ /^\d+(|\.\d+)$/) {
$delay = 2;
}
if ($env{'form.modal'}) {
my $onload = 'document.forms.reldt.submit()';
if ($delay) {
my $js_delay = int(1000 * $delay);
$onload = "setTimeout(function(){
document.forms.reldt.submit();
},$js_delay);";
}
$parms{'add_entries'}={'onload' => $onload};
} else {
$parms{'redirect'}=[$delay,$feedurl];
}
$r->print(&Apache::loncommon::start_page('Feedback not sent',undef,\%parms));
my $windowname = 'loncapaclient';
if ($env{'request.lti.login'}) {
$windowname .= 'lti';
}
$r->print(<<ENDFAILREDIR);
<img align="right" src="$logo" />
<p class="LC_warning">$lt{'sorr'}</p>
<form name="reldt" action="$feedurl" target="$windowname">
</form>
ENDFAILREDIR
$r->print(&Apache::loncommon::end_page());
}
sub redirect_back {
my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,
$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge,$delay) = @_;
my $sorttag = '';
my $roletag = '';
my $statustag = '';
my $sectag = '';
my $grptag = '';
my $userpicktag = '';
my $qrystr = '';
my $prevtag = '';
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
&dewrapper(\$feedurl);
if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
if ($previous > 0) {
$qrystr = 'previous='.$previous;
if ($feedurl =~ /\?register=1/) {
$feedurl .= '&'.$qrystr;
} else {
$feedurl .= '?'.$qrystr;
}
$prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
}
if (defined($sort)) {
my $sortqry = 'sortposts='.$sort;
if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
$feedurl .= '&'.$sortqry;
} else {
$feedurl .= '?'.$sortqry;
}
$sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
if (defined($numpicks)) {
my $userpickqry = 'totposters='.$numpicks;
$feedurl .= '&'.$userpickqry;
$userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
} else {
if (ref($sectionpick) eq 'ARRAY') {
$feedurl .= '&sectionpick=';
$sectag .= '<input type="hidden" name="sectionpick" value="';
foreach my $sec (@{$sectionpick}) {
$feedurl .= $sec.',';
$sectag .= $sec.',';
}
$feedurl =~ s/,$//;
$sectag =~ s/,$//;
$sectag .= '" />';
} else {
$feedurl .= '&sectionpick='.$sectionpick;
$sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
}
if (ref($grouppick) eq 'ARRAY') {
$feedurl .= '&grouppick=';
$sectag .= '<input type="hidden" name="grouppick" value="';
foreach my $grp (@{$grouppick}) {
$feedurl .= $grp.',';
$grptag .= $grp.',';
}
$feedurl =~ s/,$//;
$grptag =~ s/,$//;
$grptag .= '" />';
} else {
$feedurl .= '&grouppick='.$grouppick;
$grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
}
if (ref($rolefilter) eq 'ARRAY') {
$feedurl .= '&rolefilter=';
$roletag .= '<input type="hidden" name="rolefilter" value="';
foreach my $role (@{$rolefilter}) {
$feedurl .= $role.',';
$roletag .= $role.',';
}
$feedurl =~ s/,$//;
$roletag =~ s/,$//;
$roletag .= '" />';
} else {
$feedurl .= '&rolefilter='.$rolefilter;
$roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
}
$feedurl .= '&statusfilter='.$statusfilter;
$statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
}
}
my $grouptag;
if ($group ne '') {
$grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
my $refarg;
if (exists($env{'form.ref'})) {
$refarg = '&ref='.$env{'form.ref'};
$grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
}
if ($feedurl =~ /\?/) {
$feedurl .= '&group='.$group.$refarg;
} else {
$feedurl .= '?group='.$group.$refarg;
}
}
&Apache::lonenc::check_encrypt(\$feedurl);
my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
my %parms=('only_body' => 1);
if ($delay !~ /^\d+(|\.\d+)$/) {
$delay = 0;
}
if ($env{'form.modal'}) {
my $onload = 'document.forms.reldt.submit()';
if ($delay) {
my $js_delay = int(1000 * $delay);
$onload = "setTimeout(function(){
document.forms.reldt.submit();
},$js_delay);";
}
$parms{'add_entries'}={'onload' => $onload};
} else {
$parms{'redirect'}=[$delay,$feedurl];
}
my $start_page=
&Apache::loncommon::start_page('Feedback sent',undef,\%parms);
my $end_page = &Apache::loncommon::end_page();
my $windowname = 'loncapaclient';
if ($env{'request.lti.login'}) {
$windowname .= 'lti';
}
$r->print(<<ENDREDIR);
$start_page
<img align="right" src="$logo" />
$typestyle
<b>Sent $sendsomething message(s), and $sendposts post(s).</b>
$blog
$toolarge
<font color="red">$status</font>
<form name="reldt" action="$feedurl" target="$windowname">
$prevtag
$sorttag
$statustag
$roletag
$sectag
$grptag
$userpicktag
$grouptag
</form>
$end_page
ENDREDIR
}
sub no_redirect_back {
my ($r,$feedurl,$delay) = @_;
my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
my $form_for_modal;
my %parms=('only_body' => 1,
'bgcolor' => '#FFFFFF',);
if ($delay !~ /^\d+(|\.\d+)$/) {
$delay = 0;
}
if ($env{'form.modal'}) {
if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
my $onload = 'document.forms.reldt.submit()';
if ($delay) {
my $js_delay = int(1000 * $delay);
$onload = "setTimeout(function(){
document.forms.reldt.submit();
},$js_delay);";
}
$parms{'add_entries'}={'onload' => $onload};
my $windowname = 'loncapaclient';
if ($env{'request.lti.login'}) {
$windowname .= 'lti';
}
$form_for_modal = <<ENDFORM;
<form name="reldt" action="$feedurl" target="$windowname">
</form>
ENDFORM
}
} else {
if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
$parms{'redirect'}=[$delay,$feedurl];
}
}
my $start_page=
&Apache::loncommon::start_page('Feedback not sent',undef,
\%parms);
my $end_page = &Apache::loncommon::end_page();
my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
$r->print (<<ENDNOREDIRTWO);
$start_page
<img align="right" src="$logo" />
<b>$nofeed</b>
<br />
$form_for_modal
$end_page
ENDNOREDIRTWO
}
sub screen_header {
my ($feedurl,$symb,$group) = @_;
my %default = &Apache::lonlocal::texthash (
question => 'Question about resource content',
comment => 'Question/Comment/Feedback about course content',
policy => 'Question/Comment/Feedback about course policy',
);
my $contribdisc = &mt('Contribution to course discussion of resource');
my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
my $namevis = &mt('name only visible to course faculty');
my $crstype;
if ($env{'request.course.id'}) {
$crstype = &Apache::loncommon::course_type();
if ($crstype eq 'Community') {
$default{'comment'} = &mt('Question/Comment/Feedback about community content');
$default{'policy'} = &mt('Question/Comment/Feedback about community policy');
$contribdisc = &mt('Contribution to community discussion of resource');
$anoncontrib = &mt('Anonymous contribution to community discussion of resource');
$namevis = &mt('name only visible to community facilitators');
}
}
my $msgoptions='';
my $discussoptions='';
my $checkradio = '';
my $blockblog;
my (%fdbkoptions,%discoptions);
unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
$fdbkoptions{'author'} = 1;
}
if (&feedback_available(1)) {
$fdbkoptions{'question'} = 1;
}
if (&feedback_available(0,1)) {
$fdbkoptions{'course'} = 1;
}
if (&feedback_available(0,0,1)) {
$fdbkoptions{'policy'} = 1;
}
}
if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my $realsymb = &get_realsymb($symb);
if (!$blocked && &discussion_open(undef,$realsymb) &&
(&Apache::lonnet::allowed('pch',
$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
(($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
$discoptions{'nonanon'} = 1;
if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$discoptions{'anon'} = 1;
}
$blockblog = &Apache::loncommon::blocking_status('blogs');
}
}
my $total = scalar(keys(%fdbkoptions)) + scalar(keys(%discoptions));
return if (!$total);
if ($total == 1) {
$checkradio = ' checked="checked"';
}
if (keys(%fdbkoptions)) {
if ($fdbkoptions{'author'}) {
$msgoptions =
'<label><input type="radio" name="discuss" value="author"'.$checkradio.' /> '.
&mt('Feedback to resource author').'</label><br />';
}
foreach my $item ('question','comment','policy') {
my $type = $item;
if ($item eq 'comment') {
$type = 'course';
}
my $optionhash=$env{'course.'.$env{'request.course.id'}.'.'.$item.'.email.text'};
if ($fdbkoptions{$type}) {
$msgoptions .=
'<label><input type="radio" name="discuss" value="'.$type.'"'.$checkradio.' />'.
($optionhash?$optionhash:$default{$item}).'</label><br />';
}
}
}
if (keys(%discoptions)) {
if ($discoptions{'nonanon'}) {
$discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
$contribdisc.
'</label>';
}
if ($discoptions{'anon'}) {
$discussoptions .= '<br /><label><input type="radio" name="discuss" value="anon"'.$checkradio.' /> '.
$anoncontrib.
' <i>('.$namevis.')</i></label> '.
'<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
}
if (!$blockblog) {
$discussoptions.= &add_blog_checkbox($crstype);
}
}
if ($msgoptions) {
$msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
.'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
'<td>'.$msgoptions.'</td></tr>';
}
if ($discussoptions) {
$discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
.'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
'<td>'.$discussoptions.'</td></tr>';
}
return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
}
sub resource_output {
my ($feedurl) = @_;
my $usersaw=&Apache::lonnet::ssi_body($feedurl);
$usersaw=~s/\<body[^\>]*\>//gi;
$usersaw=~s/\<\/body\>//gi;
$usersaw=~s/\<html\>//gi;
$usersaw=~s/\<\/html\>//gi;
$usersaw=~s/\<head\>//gi;
$usersaw=~s/\<\/head\>//gi;
$usersaw=~s/action\s*\=/would_be_action\=/gi;
return $usersaw;
}
sub clear_out_html {
my ($message,$override)=@_;
# Always allow the <m>-tag
my %html=(M=>1);
# Check if more is allowed
my $cid=$env{'request.course.id'};
if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
($override)) {
# allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
# <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
# <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
%html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
}
# Do the substitution of everything that is not explicitly allowed
$message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
{($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
$message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
{($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
return $message;
}
sub assemble_email {
my ($message,$prevattempts,$usersaw,$useranswer)=@_;
my %lt = &Apache::lonlocal::texthash(
'prev' => 'Previous attempts of student (if applicable)',
'orig' => 'Original screen output (if applicable)',
'corr' => 'Correct Answer(s) (if applicable)',
);
if (&Apache::loncommon::course_type() eq 'Community') {
$lt{'prev'} = &mt('Previous attempts of member (if applicable)');
}
my $email=<<"ENDEMAIL";
$message
ENDEMAIL
my $citations=<<"ENDCITE";
<h2>$lt{'prev'}</h2>
$prevattempts
<br /><hr />
<h2>$lt{'orig'}</h2>
$usersaw
<h2>$lt{'corr'}</h2>
$useranswer
ENDCITE
return ($email,$citations);
}
sub feedback_available {
my ($question,$course,$policy)=@_;
my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
$course,$policy);
return scalar(%to);
}
sub send_msg {
my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,$clientip,%to)=@_;
my $status='';
my $sendsomething=0;
my $delay;
my $senthide;
my %setters;
my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
&Apache::loncommon::blockcheck(\%setters,'com',$clientip);
if ($by_ip) {
$senthide = 1;
}
my $restitle = &get_resource_title($symb,$feedurl);
if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
unless ($title=~/\w/) { $title=&mt('Feedback'); }
foreach my $key (keys(%to)) {
if ($key) {
my ($user,$domain) = split(/\:/,$key,2);
if (!defined($user)) {
$status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
} elsif (!defined($domain)) {
$status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
} else {
unless (&Apache::lonmsg::user_normal_msg($user,$domain,
$title.' ['.$restitle.']',$email,$citations,$feedurl,
$attachmenturl,undef,undef,$symb,$restitle,undef,
undef,undef,undef,$senthide)=~/ok/) {
$status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
} else {
$sendsomething++;
}
}
}
}
if ($sendsomething && $senthide) {
if ($by_ip) {
my $showdom = &Apache::lonnet::domain($blockdom);
if ($showdom eq '') {
$showdom = $blockdom;
}
$delay = 4;
$status.='<br />'.&mt("Message content of feedback you send to instructor(s) from your current IP address: [_1] will be unavailable in your 'Sent' folder.",$clientip).
'<ul><li>'.
&mt('This does not affect delivery of feedback to your instructor(s).').
'</li><li>'.
&mt('Note: some types of communication functionality are blocked for certain IP address(es).').
'</li><li>'.
&mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.',
$showdom).
'</li></ul><br />';
}
}
# Records of number of feedback messages are kept under the "symb" called "_feedback"
# There are two entries within the framework of a course:
# - the URLs for which feedback was provided
# - the total number of contributions
if ($sendsomething) {
my %record=&getfeedbackrecords();
my ($temp)=keys(%record);
unless ($temp=~/^error\:/) {
my %newrecord=();
$newrecord{'resource'}=$feedurl;
$newrecord{'subnumber'}=$record{'subnumber'}+1;
unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
$status.='<br />'.&mt('Not registered').'<br />';
}
}
}
return ($status,$sendsomething,$delay);
}
# Routine to get the complete feedback records
sub getfeedbackrecords {
my ($uname,$udom,$course)=@_;
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
return %record;
}
# Routine to get feedback statistics
sub getfeedbackstats {
my %record=&getfeedbackrecords(@_);
return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
}
# Store feedback credit
sub storefeedbackpoints {
my ($points,$uname,$udom,$course)=@_;
unless ($points) { $points=0; }
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my %record=('grader_user' => $env{'user.name'},
'grader_domain' => $env{'user.domain'},
'points' => $points);
return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
}
# Store feedback "likes"
sub storefeedbacklikes {
my ($likes,$uname,$udom,$course)=@_;
unless ($likes) { $likes=0; }
if ($likes>0) { $likes=1; }
if ($likes<0) { $likes=-1; }
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my %record=&getfeedbackrecords($uname,$udom,$course);
my $totallikes=$record{'totallikes'};
$totallikes+=$likes;
my %newrecord=('likes_user' => $env{'user.name'},
'likes_domain' => $env{'user.domain'},
'likes' => $likes,
'totallikes' => $totallikes);
return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
}
sub adddiscuss {
my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
my $status='';
my $realsymb = &get_realsymb($symb);
my ($cnum,$cdom);
if ($env{'request.course.id'}) {
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
$cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
}
if (&discussion_open(undef,$realsymb) &&
(&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
(($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
my %contrib=('message' => $email,
'sendername' => $env{'user.name'},
'senderdomain' => $env{'user.domain'},
'screenname' => $env{'environment.screenname'},
'plainname' => $env{'environment.firstname'}.' '.
$env{'environment.middlename'}.' '.
$env{'environment.lastname'}.' '.
$env{'enrironment.generation'},
'attachmenturl'=> $attachmenturl,
'subject' => $subject);
if ($env{'form.replydisc'}) {
$contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
}
if ($anon) {
$contrib{'anonymous'}='true';
}
if (($symb) && ($email)) {
my $now = time;
if ($env{'form.editdisc'}) {
$contrib{'ip'}=&Apache::lonnet::get_requestor_ip();
$contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
$contrib{'timestamp'} = $now;
$contrib{'history'} = '';
my $numoldver = 0;
my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
&Apache::lonenc::check_decrypt(\$oldsymb);
$oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
# get timestamp for last post and history
my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
if (defined($oldcontrib{$oldidx.':replyto'})) {
$contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
}
if (defined($oldcontrib{$oldidx.':history'})) {
if ($oldcontrib{$oldidx.':history'} =~ /:/) {
my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
$numoldver = @oldversions;
} else {
$numoldver = 1;
}
$contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
}
my $numnewver = $numoldver + 1;
if (defined($oldcontrib{$oldidx.':subject'})) {
if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
$contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
$contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
} else {
$contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
}
}
if (defined($oldcontrib{$oldidx.':message'})) {
if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
$contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
$contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
} else {
$contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
}
}
$contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
$oldsymb,$oldidx,\%contrib,
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
$status='Editing class discussion'.($anon?' (anonymous)':'');
} else {
$status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
&Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
}
my %storenewentry=($symb => $now);
$status.='<br />'.&mt('Updating discussion time').': '.
&Apache::lonnet::put('discussiontimes',\%storenewentry,
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
}
my %record=&getdiscussionrecords();
my ($temp)=keys(%record);
unless ($temp=~/^error\:/) {
my %newrecord=();
$newrecord{'resource'}=$symb;
$newrecord{'subnumber'}=$record{'subnumber'}+1;
$status.='<br />'.&mt('Registering').': '.
&Apache::lonnet::cstore(\%newrecord,'_discussion');
&updatekarma();
}
} else {
$status.='Failed.';
}
return $status.'<br />';
}
# Routine to get the complete discussion records
sub getdiscussionrecords {
my ($uname,$udom,$course)=@_;
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
return %record;
}
# Routine to get discussion statistics
sub getdiscussionstats {
my %record=&getdiscussionrecords(@_);
my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
}
# Calculate discussion karma
sub calcdiscussionkarma {
my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
my $karma=0;
if ($votes>0) {
$karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
if ($karma<0) { $karma=0; }
if ($karma>5) { $karma=5; }
}
return $karma;
}
# Update karma
sub updatekarma {
my ($uname,$udom,$course)=@_;
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my $karma=&calcdiscussionkarma($uname,$udom,$course);
&Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
&Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
return $karma;
}
# Retrieve karma
sub userkarma {
my ($uname,$udom,$course)=@_;
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my $hashkey=$uname.':'.$udom.':'.$course;
my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
if ($cached) {
return $karma;
}
my %userdisc=&getdiscussionrecords($uname,$udom,$course);
$karma=$userdisc{'karma'};
&Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
return $karma;
}
# Store discussion credit
sub storediscussionpoints {
my ($points,$uname,$udom,$course)=@_;
unless ($points) { $points=0; }
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my %record=('grader_user' => $env{'user.name'},
'grader_domain' => $env{'user.domain'},
'points' => $points);
return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
}
# Store discussion "likes"
sub storediscussionlikes {
my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
unless ($uname) { $uname=$env{'user.name'}; }
unless ($udom) { $udom=$env{'user.domain'}; }
unless ($course) { $course=$env{'request.course.id'}; }
my %record=&getdiscussionrecords($uname,$udom,$course);
my $totallikes=$record{'totallikes'};
my $totalunlikes=$record{'totalunlikes'};
$totallikes += $chglikes;
$totalunlikes += $chgunlikes;
my %newrecord=('likes_user' => $env{'user.name'},
'likes_domain' => $env{'user.domain'},
'totallikes' => $totallikes,
'totalunlikes' => $totalunlikes,
'context' => $context);
my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
if ($status eq 'ok') {
&updatekarma($uname,$udom,$course);
}
return $status;
}
sub get_discussion_info {
my ($idx,%contrib) = @_;
my $changelast = 0;
my $count = 0;
my $hiddenflag = 0;
my $deletedflag = 0;
my ($hidden,$deleted,%info,$newlastdisc);
my $version = $contrib{'version'};
if ($version) {
for (my $id=$version; $id>0; $id--) {
my $vkeys=$contrib{$id.':keys'};
my @keys=split(/:/,$vkeys);
if (grep(/^hidden$/,@keys)) {
if (!$hiddenflag) {
$hidden = $contrib{$id.':hidden'};
$hiddenflag = 1;
}
} elsif (grep(/^deleted$/,@keys)) {
if (!$deletedflag) {
$deleted = $contrib{$id.':deleted'};
$deletedflag = 1;
}
} else {
if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
$count++;
$info{$count}{'id'} = $id;
$info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
}
}
}
if ($info{'1'}{'id'} == $idx) {
$changelast = 1;
if ($count > 1) {
$newlastdisc = $info{'2'}{'timestamp'};
} else {
$newlastdisc = 0;
}
}
}
return ($changelast,$newlastdisc);
}
# ----------------------------------------------------------- Preview function
sub show_preview {
my ($r) = @_;
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my $start_page=
&Apache::loncommon::start_page('Preview',undef,
{'only_body' => 1,});
my $message=&clear_out_html($env{'form.comment'});
&newline_to_br(\$message);
$message=&Apache::lonspeller::markeduptext($message);
$message=&Apache::lontexconvert::msgtexconverted($message);
my $subject=&clear_out_html($env{'form.subject'});
$subject=~s/\n/\<br \/\>/g;
$subject=&Apache::lontexconvert::msgtexconverted($subject);
my $end_page = &Apache::loncommon::end_page();
$r->print($start_page
.'<h1>'.&mt('Preview').'</h1>'
.&Apache::lonhtmlcommon::start_pick_box()
.&Apache::lonhtmlcommon::row_title(&mt('Subject'))
.$subject
.&Apache::lonhtmlcommon::row_closure()
.&Apache::lonhtmlcommon::row_title(&mt('Message'))
.$message
.&Apache::lonhtmlcommon::row_closure(1)
.&Apache::lonhtmlcommon::end_pick_box()
.$end_page
);
}
sub contains_block_html {
my ($message)=@_;
return ($message =~ m{
<(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
\s*
(\w+\=['"]\w+['"])*
\s*
(
\s*/>|
>.*</\1\s*>
)}xs
);
}
sub tidy_html {
my ($message)=@_;
# my $tidy = HTML::Tidy::libXML->new();
# my $xhtml = $tidy->clean($message, 'utf-8', 1);
# $xhtml =~ m/<body>(.*)<\/body>/is;
# my $clean = $1;
# # remove any empty block-level tags
# $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
# $message=$clean;
return $message;
}
sub newline_to_br {
my ($message)=@_;
my $newmessage;
my $parser=HTML::LCParser->new($message);
while (my $token=$parser->get_token()) {
if ($token->[0] eq 'T') {
my $text=$token->[1];
$text=~s/\n/\<br \/\>/g;
$newmessage.=$text;
} elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
$newmessage.=$token->[1];
} elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
$newmessage.=$token->[2];
} elsif ($token->[0] eq 'S') {
$newmessage.=$token->[4];
}
}
$$message=$newmessage;
}
sub generate_preview_button {
my ($formname,$fieldname)=@_;
unless ($formname) { $formname='mailform'; }
unless ($fieldname) { $fieldname='comment'; }
my $pre=&mt("Show Preview and Check Spelling");
return(<<ENDPREVIEW);
<br />
<form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
<input type="hidden" name="subject" />
<input type="hidden" name="comment" />
<input type="button" value="$pre"
onclick="if (typeof(document.$formname.onsubmit)=='function') {document.$formname.onsubmit();};this.form.comment.value=document.$formname.$fieldname.value;this.form.subject.value=document.$formname.subject.value;this.form.submit();" />
</form>
ENDPREVIEW
}
sub modify_attachments {
my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
$attachmaxtext,$toolarge)=@_;
my %lt = &Apache::lonlocal::texthash(
'subj' => 'Subject',
'chth' => 'Check the checkboxes for any you wish to remove.',
'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
'adda' => 'Add a new attachment to this post',
'stch' => 'Save Changes',
'clic' => 'Add/remove attachments',
);
my $js = <<END;
<script type="text/javascript">
function setAction () {
document.modattachments.action = document.modattachments.origpage.value;
document.modattachments.submit();
}
</script>
<script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
END
# Breadcrumbs
my $brcrum = [{'href' => '',
'text' => 'Discussion Post Attachments'}];
my %parms=('only_body' => 1);
if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
my $start_page =
&Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
my $orig_subject = &unescape($env{'form.subject'});
my $subject=&clear_out_html($orig_subject);
$subject=~s/\n/\<br \/\>/g;
$subject=&Apache::lontexconvert::msgtexconverted($subject);
my $timestamp=$env{'form.timestamp'};
my $numoldver=$env{'form.numoldver'};
my $msg = '';
my %attachments = ();
my %currattach = ();
if ($idx) {
&extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
}
&Apache::lonenc::check_encrypt(\$symb);
my $end_page =
&Apache::loncommon::end_page();
$r->print(<<END);
$start_page
$toolarge
<form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
<h1>$lt{'clic'}</h1>
END
$r->print(&Apache::lonhtmlcommon::start_pick_box());
$r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
$r->print('<b>'.$subject.'</b>');
$r->print(&Apache::lonhtmlcommon::row_closure());
$r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
$r->print('<input type="file" name="addnewattach" class="LC_flUpload" />'
.'<input type="hidden" id="LC_free_space" value="131072" />'
.'<input type="button" name="upload" value="Upload" '
.'onclick="this.form.submit()" /> '.$attachmaxtext);
if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
$r->print(&Apache::lonhtmlcommon::row_closure());
$r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
if ($idx) {
if ($attachmenturls) {
my @currold = keys(%currattach);
if (@currold > 0) {
$r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
foreach my $id (@currold) {
my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
$attachurl =~ m#/([^/]+)$#;
$r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
}
$r->print("<br />");
}
}
}
if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
$r->print($lt{'chth'}.'<br />'."\n");
foreach my $attach (@{$currnewattach}) {
$attach =~ m#/([^/]+)$#;
$r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
}
}
}
$r->print(&Apache::lonhtmlcommon::row_closure(1));
$r->print(&Apache::lonhtmlcommon::end_pick_box());
$r->print(<<END);
<input type="hidden" name="subject" value="$env{'form.subject'}" />
<input type="hidden" name="comment" value="$env{'form.comment'}" />
<input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
<input type="hidden" name="idx" value="$env{'form.idx'}" />
<input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
<input type="hidden" name="origpage" value="$env{'form.origpage'}" />
<input type="hidden" name="blog" value="$env{'form.blog'}" />
<input type="hidden" name="discuss" value="$env{'form.discuss'}" />
END
foreach my $item (@{$currnewattach}) {
$r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
}
foreach my $item (@{$currdelold}) {
$r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
}
$r->print(<<END);
<input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
</form>
$end_page
END
return;
}
sub process_attachments {
my ($currnewattach,$currdelold,$keepold) = @_;
@{$currnewattach}=
&Apache::loncommon::get_env_multiple('form.currnewattach');
@{$currdelold}=
&Apache::loncommon::get_env_multiple('form.deloldattach');
if (exists($env{'form.delnewattach'})) {
my @currdelnew =
&Apache::loncommon::get_env_multiple('form.delnewattach');
my @currnew = ();
foreach my $newone (@{$currnewattach}) {
my $delflag = 0;
foreach my $item (@currdelnew) {
if ($newone eq $item) {
$delflag = 1;
last;
}
}
unless ($delflag) {
push(@currnew, $newone);
}
}
@{$currnewattach} = @currnew;
}
@{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
}
sub generate_attachments_button {
my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
$numoldver,$mode,$blockblog) = @_;
my $origpage = $ENV{'REQUEST_URI'};
my $att=$attachnum.' '.&mt("attachments");
my %lt = &Apache::lonlocal::texthash(
'clic' => 'Add/remove attachments',
);
my $response = (<<END);
<br />
<form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
<input type="button" value="$lt{'clic'}"
onclick="if (typeof(document.mailform.onsubmit)=='function') {document.mailform.onsubmit();};this.form.comment.value=escape(document.mailform.comment.value);this.form.subject.value=escape(document.mailform.subject.value);
END
if (!$blockblog) {
$response .= 'setblogvalue();';
}
unless ($mode eq 'board') {
$response .= 'javascript:anonchk();';
}
$response .= (<<ENDATTACH);
this.form.submit();" />
<input type="hidden" name="origpage" value="$origpage" />
<input type="hidden" name="idx" value="$idx" />
<input type="hidden" name="timestamp" value="$now" />
<input type="hidden" name="subject" />
<input type="hidden" name="comment" />
<input type="hidden" name="blog" value="0" />
<input type="hidden" name="discuss" value="0" />
<input type="hidden" name="numoldver" value="$numoldver" />
ENDATTACH
if (defined($deloldattach)) {
if (@{$deloldattach} > 0) {
foreach my $delatt (@{$deloldattach}) {
$response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
}
}
}
if (defined($currnewattach)) {
if (@{$currnewattach} > 0) {
foreach my $attach (@{$currnewattach}) {
$response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
}
}
}
$response .= '</form>';
return $response;
}
sub extract_attachments {
my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
%{$attachments}=();
&get_post_attachments($attachments,$attachmenturls);
foreach my $id (sort(keys(%{$attachments}))) {
if (exists($$attachments{$id}{$numoldver})) {
if (defined($currdelold)) {
if (@{$currdelold} > 0) {
unless (grep/^$id$/,@{$currdelold}) {
$$currattach{$id} = $$attachments{$id}{$numoldver};
}
} else {
$$currattach{$id} = $$attachments{$id}{$numoldver};
}
} else {
$$currattach{$id} = $$attachments{$id}{$numoldver};
}
}
}
my @attached = (sort { $a <=> $b } keys(%{$currattach}));
if (@attached == 1) {
my $id = $attached[0];
my $attachurl;
if ($attachmenturls =~ m/^<attachment id="0">/) {
$attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
} else {
$attachurl = $$attachments{$id}{'filename'};
}
$attachurl=~m|/([^/]+)$|;
$$message.='<br /><a href="'.$attachurl.'"><tt>'.
$1.'</tt></a><br />';
&Apache::lonnet::allowuploaded('/adm/feedback',
$attachurl);
} elsif (@attached > 1) {
$$message.='<ol>';
foreach my $attach (@attached) {
my $id = $attach;
my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
my ($fname)
=($attachurl=~m|/([^/]+)$|);
$$message .= '<li><a href="'.$attachurl.
'"><tt>'.
$fname.'</tt></a></li>';
&Apache::lonnet::allowuploaded('/adm/feedback',
$attachurl);
}
$$message .= '</ol>';
}
}
sub construct_attachmenturl {
my ($currnewattach,$keepold,$symb,$idx)=@_;
my $oldattachmenturl;
my $newattachmenturl;
my $startnum = 0;
my $currver = 0;
if (($env{'form.editdisc'}) && ($idx)) {
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
$oldattachmenturl = $contrib{$idx.':attachmenturl'};
if ($contrib{$idx.':history'}) {
if ($contrib{$idx.':history'} =~ /:/) {
my @oldversions = split(/:/,$contrib{$idx.':history'});
$currver = 1 + scalar(@oldversions);
} else {
$currver = 2;
}
} else {
$currver = 1;
}
if ($oldattachmenturl) {
if ($oldattachmenturl =~ m/^<attachment id="0">/) {
my %attachments = ();
my $prevver = $currver-1;
&get_post_attachments(\%attachments,$oldattachmenturl);
my $numattach = scalar(keys(%attachments));
$startnum += $numattach;
foreach my $num (sort {$a <=> $b} keys(%attachments)) {
$newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
unless ($item eq 'filename') {
$newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
}
}
if (grep/^$num$/,@{$keepold}) {
$newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
}
$newattachmenturl .= '</attachment>';
}
} else {
$newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
unless (grep/^0$/,@{$keepold}) {
$newattachmenturl .= '<post id="1">n</post>';
}
$newattachmenturl .= '</attachment>';
$startnum ++;
}
}
}
for (my $i=0; $i<@{$currnewattach}; $i++) {
my $attachnum = $startnum + $i;
$newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
}
return $newattachmenturl;
}
sub add_blog_checkbox {
my ($crstype) = @_;
my $checkstatus;
if ($env{'form.blog'}) {
$checkstatus = 'checked="checked"';
}
my $output = '
<script type="text/javascript">
function setblogvalue() {
if (document.mailform.blog.checked) {
document.attachment.blog.value = 1;
} else {
document.attachment.blog.value = 0;
}
}
</script><br />
<label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
if ($crstype eq 'Community') {
$output .= &mt('Add to my public community blog');
} else {
$output .= &mt('Add to my public course blog');
}
$output .= '</label><br />'."\n";
return $output;
}
sub has_discussion {
my $resourcesref = shift;
my $navmap = Apache::lonnavmaps::navmap->new();
if (defined($navmap)) {
my @allres=$navmap->retrieveResources();
foreach my $resource (@allres) {
if ($resource->hasDiscussion()) {
my $ressymb = $resource->wrap_symb();
if (ref($resourcesref) eq 'ARRAY') {
push(@{$resourcesref}, $ressymb);
}
}
}
} else {
&Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
}
return;
}
sub sort_filter_names {
my ($sort_types,$role_types,$status_types,$crstype) = @_;
if (ref($sort_types) eq 'HASH') {
%{$sort_types} = (
ascdate => 'Date order - oldest first',
descdate => 'Date order - newest first',
thread => 'Threaded',
subject => 'By subject',
username => 'By domain and username',
lastfirst => 'By last name, first name'
);
}
my @courseroles = qw(st in ta ep ad);
if ($crstype eq 'Community') {
push(@courseroles,'co');
} else {
push(@courseroles,'cc');
}
if (ref($role_types) eq 'HASH') {
foreach my $role (@courseroles) {
$role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
}
$role_types->{'all'} = 'All roles';
$role_types->{'cr'} = 'Custom role';
}
if (ref($status_types) eq 'HASH') {
%{$status_types} = (
all => 'Roles of any status',
Active => 'Only active roles',
Expired => 'Only past roles',
Future => 'Only future roles',
);
}
}
sub handler {
my $r = shift;
if ($r->header_only) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK;
}
# --------------------------- Get query string for limited number of parameters
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['like','unlike','modal','hide','unhide','deldisc','undeleteall','postdata','preview','replydisc','editdisc','cmd','symb','onlyunread','allposts','onlyunmark','previous','markread','markonread','markondisp','toggoff','toggon','modifydisp','changes','navtime','navmaps','navurl','sortposts','applysort','rolefilter','statusfilter','sectionpick','groupick','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly','group','ref']);
my $group = $env{'form.group'};
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
my %attachmax = (
text => &mt('(128 KB max size)'),
num => 131072,
);
if ($env{'form.editdisc'}) {
if (!(&editing_allowed($env{'form.editdisc'},$group))) {
my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
my $feedurl=&Apache::lonnet::clutter($url);
&redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />',
'0','0','','',$env{'form.previous'},undef,undef,undef,
undef,undef,undef,$group);
return OK;
}
}
if ($env{'form.discsymb'}) {
my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
my $readkey = $symb.'_read';
my $chgcount = 0;
my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
foreach my $key (keys(%env)) {
if ($key =~ m/^form\.postunread_(\d+)/) {
if ($readinghash{$readkey} =~ /\.$1\./) {
$readinghash{$readkey} =~ s/\.$1\.//;
$chgcount ++;
}
} elsif ($key =~ m/^form\.postread_(\d+)/) {
unless ($readinghash{$readkey} =~ /\.$1\./) {
$readinghash{$readkey} .= '.'.$1.'.';
$chgcount ++;
}
}
}
if ($chgcount > 0) {
&Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
\%readinghash,$env{'user.domain'},$env{'user.name'});
}
&redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
'0','0','','',$env{'form.previous'},'','','',
undef,undef,undef,$group);
return OK;
}
if ($env{'form.allversions'}) {
&Apache::loncommon::content_type($r,'text/html');
&Apache::loncommon::no_cache($r);
$r->send_http_header;
# Breadcrumbs
my $brcrum = [{'href' => '',
'text' => 'Discussion Post Versions'}];
my %parms=();
if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
$r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
my $ressymb = &wrap_symb($symb);
my $seeid;
if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$seeid = 1;
}
my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
if ($idx > 0) {
my %messages = ();
my %subjects = ();
my %attachmsgs = ();
my %allattachments = ();
my %imsfiles = ();
my ($screenname,$plainname,$showaboutme);
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
$r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
}
$r->print(&Apache::loncommon::end_page());
return OK;
}
if ($env{'form.posterlist'}) {
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
&print_showposters($r,$symb,$env{'form.previous'},$feedurl,
$env{'form.sortposts'});
return OK;
}
if ($env{'form.userpick'}) {
my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
my $numpicks = @posters;
my %discinfo;
$discinfo{$symb.'_userpick'} = join('&',@posters);
&Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
\%discinfo,$env{'user.domain'},$env{'user.name'});
&redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
'',$env{'form.previous'},$env{'form.sortposts'},'','','',
'',$numpicks,$group);
return OK;
}
if ($env{'form.applysort'}) {
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
&redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
'',$env{'form.previous'},$env{'form.sortposts'},
$env{'form.rolefilter'},$env{'form.statusfilter'},
$env{'form.sectionpick'},$env{'form.grouppick'},
undef,$group);
return OK;
} elsif ($env{'form.cmd'} eq 'sortfilter') {
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
&print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
return OK;
} elsif ($env{'form.navtime'}) {
my %discinfo = ();
my @resources = ();
if (defined($env{'form.navmaps'})) {
if ($env{'form.navmaps'} =~ /:/) {
@resources = split(/:/,$env{'form.navmaps'});
} else {
@resources = ("$env{'form.navmaps'}");
}
} else {
&has_discussion(\@resources);
}
my $numitems = @resources;
my $feedurl = '/adm/navmaps';
if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
my %lt = &Apache::lonlocal::texthash(
'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
);
foreach my $res (@resources) {
my $ressymb=$res;
&Apache::lonenc::check_decrypt(\$ressymb);
my $lastkey = $ressymb.'_lastread';
$discinfo{$lastkey} = $env{'form.navtime'};
}
my $textline = '<b>'.
&mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.',
$numitems).
'</b>';
if ($numitems > 0) {
&Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
\%discinfo,$env{'user.domain'},$env{'user.name'});
} else {
$textline = "<b>$lt{'twnp'}</b>";
}
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
my %onload;
my $start_page=
&Apache::loncommon::start_page('New posts marked as read',undef,
{'redirect' => [2,$feedurl],
'only_body' => 1,
'add_entries' => \%onload});
my $end_page = &Apache::loncommon::end_page();
my $windowname = 'loncapaclient';
if ($env{'request.lti.login'}) {
$windowname .= 'lti';
}
$r->print (<<ENDREDIR);
$start_page
<img align="right" src="$logo" />
$textline
<form name="reldt" action="$feedurl" target="$windowname">
</form>
<br />
$end_page
ENDREDIR
return OK;
} elsif ($env{'form.modifydisp'}) {
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
my ($dispchgA,$dispchgB,$markchg,$toggchg) =
split(/_/,$env{'form.changes'});
&print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
$dispchgB,$markchg,$toggchg,$feedurl);
return OK;
} elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
$env{'form.allposts'} || $env{'form.onlyunread'} ||
$env{'form.onlyunmark'} || $env{'form.toggoff'} ||
$env{'form.toggon'} || $env{'form.markread'}) {
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
my %discinfo;
# ------------------------ Modify setting for read/unread toggle for each post
if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
# --------- Modify setting for identification of 'NEW' posts in this discussion
if ($env{'form.markondisp'}) {
$discinfo{$symb.'_lastread'} = time;
$discinfo{$symb.'_markondisp'} = 1;
}
if ($env{'form.markonread'}) {
if ( $env{'form.previous'} > 0 ) {
$discinfo{$symb.'_lastread'} = $env{'form.previous'};
}
$discinfo{$symb.'_markondisp'} = 0;
}
# --------------------------------- Modify display setting for this discussion
if ($env{'form.allposts'}) {
$discinfo{$symb.'_showonlyunread'} = 0;
$discinfo{$symb.'_showonlyunmark'} = 0;
}
if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
# ----------------------------------------------------- Mark new posts not NEW
if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
&Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
\%discinfo,$env{'user.domain'},$env{'user.name'});
my $previous=$env{'form.previous'};
if ($env{'form.markondisp'}) { $previous=undef; }
&redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
'0','0','','',$previous,'','','','','','',$group);
return OK;
} elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
# ----------------------------------------------------------------- Hide/unhide
my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
my ($symb,$idx)=split(/\:\:\:/,$entry);
($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
my $ressymb = &wrap_symb($symb);
my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
&redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
'0','0','','',$env{'form.previous'},'','','','',
undef,undef,$group);
return OK;
}
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
my $currenthidden=$contrib{'hidden'};
my $currentstudenthidden=$contrib{'studenthidden'};
if ($env{'form.hide'}) {
$currenthidden.='.'.$idx.'.';
unless ($seehidden) {
$currentstudenthidden.='.'.$idx.'.';
}
} else {
$currenthidden=~s/\.$idx\.//g;
}
my %newhash=('hidden' => $currenthidden);
if ( ($env{'form.hide'}) && (!$seehidden) ) {
$newhash{'studenthidden'} = $currentstudenthidden;
}
if ($env{'form.hide'}) {
my $changelast = 0;
my $newlast;
($changelast,$newlast) = &get_discussion_info($idx,%contrib);
if ($changelast) {
&Apache::lonnet::put('discussiontimes',{$symb => $newlast},
$cdom,$cnum);
}
}
my $result;
if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
$cdom,$cnum) eq 'ok') {
my $prefix=$symb.':'.$idx.':';
my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
'^'.$prefix);
my ($totallikes,$totalunlikes);
if (ref($likes{$prefix.'likers'}) eq 'HASH') {
$totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
}
if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
$totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
}
if ($totallikes || $totalunlikes) {
my ($chglikes,$chgunlikes,$context);
if ($env{'form.hide'}) {
$chglikes = -1 * $totallikes;
$chgunlikes = -1 * $totalunlikes;
$context = 'hide';
} else {
$chglikes = $totallikes;
$chgunlikes = $totalunlikes;
$context = 'unhide';
}
&storediscussionlikes($chglikes,$chgunlikes,
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'},
$env{'request.course.id'},
$context);
}
$result = &mt('Changed discussion status');
} else {
$result = &mt('Discussion status unchanged');
}
&redirect_back($r,$feedurl,$result.'<br />','0','0','','',
$env{'form.previous'},undef,undef,undef,
undef,undef,undef,$group);
return OK;
} elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
# ----------------------------------------------------------------- Like/unlike
my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
my ($symb,$idx)=split(/\:\:\:/,$entry);
($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
my $result;
if ($idx > 0) {
my $realsymb = &get_realsymb($symb);
my $status='OPEN';
if ($Apache::lonhomework::parsing_a_problem ||
$Apache::lonhomework::parsing_a_task) {
$status=$Apache::inputtags::status[-1];
}
if (&discussion_vote_available($status,$realsymb)) {
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
my $ownpost;
if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
$ownpost = 1;
}
if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
$result = &mt('Vote not registered.').' ';
}
if ($ownpost) {
$result .= &mt('No voting for your own posts.');
} elsif ($contrib{$idx.':hidden'}) {
$result .= &mt('No voting for hidden posts.');
} elsif ($contrib{$idx.':deleted'}) {
$result .= &mt('No voting for deleted posts.');
} else {
#
# Likes and unlikes are in db-file "disclikes" of the course
# The prefix is the $symb to identify the resource discussion,
# and the $idx to identify the entry
#
my $prefix=$symb.':'.$idx.':';
my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
'^'.$prefix);
# Get current like or unlike status for the $idx for this user.
my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
my ($userlikes,$userunlikes);
if (ref($likes{$prefix.'likers'}) eq 'HASH') {
if (exists($likes{$prefix.'likers'}{$thisuser})) {
$userlikes = 1;
}
}
if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
$userunlikes = 1;
}
}
# Get the current "likes" count
my $likescount=$likes{$prefix.'likes'};
# Find out if they already voted
# Users cannot like a post twice, or unlike it twice.
# They can change their mind, though.
my $alreadyflag=0;
my $votetype;
if ($env{'form.like'}) {
if ($userlikes) {
$alreadyflag=1;
} elsif ($userunlikes) {
delete($likes{$prefix.'unlikers'}{$thisuser});
$votetype = 'switch';
$likescount++;
} else {
if (ref($likes{$prefix.'likers'}) eq 'HASH') {
$likes{$prefix.'likers'}{$thisuser} = 1;
} else {
$likes{$prefix.'likers'} = {$thisuser => 1};
}
$likescount++;
}
} else {
if ($userunlikes) {
$alreadyflag=1;
} elsif ($userlikes) {
delete($likes{$prefix.'likers'}{$thisuser});
$votetype = 'switch';
$likescount--;
} else {
if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
$likes{$prefix.'unlikers'}{$thisuser} = 1;
} else {
$likes{$prefix.'unlikers'} = {$thisuser => 1};
}
$likescount--;
}
}
# $alreadyflag would be 1 if they tried to double-like or double-unlike
if ($alreadyflag) {
if ($env{'form.like'}) {
$result= &mt("'Like' already registered");
} else {
$result= &mt("'Unlike' already registered");
}
} else {
my %newhash=($prefix.'likes' => $likescount,
$prefix.'likers' => $likes{$prefix.'likers'},
$prefix.'unlikers' => $likes{$prefix.'unlikers'});
# Store data in db-file "disclikes"
if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
# Also store with the person who posted the liked/unliked entry
my ($chglike,$chgunlike);
if ($env{'form.like'}) {
if ($votetype eq 'switch') {
$chglike = 0;
$chgunlike = -1;
} else {
$chglike = 1;
$chgunlike = 0;
}
&storediscussionlikes($chglike,$chgunlike,
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'},
$env{'request.course.id'},'like');
$result=&mt("Registered 'Like'");
} else {
if ($votetype eq 'switch') {
$chglike = -1;
$chgunlike = 0;
} else {
$chglike = 0;
$chgunlike = 1;
}
&storediscussionlikes($chglike,$chgunlike,
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'},
$env{'request.course.id'},'unlike');
$result=&mt("Registered 'Unlike'");
}
} else {
# Oops, something went wrong
$result=&mt("Failed to register vote");
}
}
}
} else {
$result=&mt('Voting unavailable for this discussion');
}
} else {
$result=&mt('Invalid post number');
}
&redirect_back($r,$feedurl,$result.'<br />',
'0','0','','',$env{'form.previous'},undef,undef,undef,
undef,undef,undef,$group);
return OK;
} elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
if ($env{'form.cmd'} eq 'threadedoff') {
&Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
&Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
&Apache::lonnet::del('environment',['threadeddiscussion']);
&Apache::lonnet::delenv('environment.threadeddiscussion');
} else {
&Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
&Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
&Apache::lonnet::del('environment',['unthreadeddiscussion']);
&Apache::lonnet::delenv('environment.unthreadeddiscussion');
}
&redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
'0','0','','',$env{'form.previous'},undef,undef,undef,
undef,undef,undef,$group);
return OK;
} elsif ($env{'form.deldisc'}) {
# --------------------------------------------------------------- Hide for good
my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
my $ressymb=&wrap_symb($symb);
unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
&redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
'0','0','','',$env{'form.previous'},'','','','',
undef,undef,$group);
return OK;
}
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
if ($changelast) {
&Apache::lonnet::put('discussiontimes',{$symb => $newlast},
$cdom,$cnum);
}
my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
my $result;
if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
$cdom,$cnum) eq 'ok') {
$result = &mt('Changed discussion status');
my $prefix=$symb.':'.$idx.':';
my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
'^'.$prefix);
my ($totallikes,$totalunlikes);
if (ref($likes{$prefix.'likers'}) eq 'HASH') {
$totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
}
if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
$totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
}
if ($totallikes || $totalunlikes) {
my $chglikes = -1 * $totallikes;
my $chgunlikes = -1 * $totalunlikes;
&storediscussionlikes($chglikes,$chgunlikes,
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'},
$env{'request.course.id'},
'delete');
}
} else {
$result = &mt('Discussion status unchanged');
}
&redirect_back($r,$feedurl,$result.'<br />','0','0','','',
$env{'form.previous'},undef,undef,undef,
undef,undef,undef,$group);
return OK;
} elsif ($env{'form.preview'}) {
# -------------------------------------------------------- User wants a preview
&show_preview($r);
return OK;
} elsif ($env{'form.attach'}) {
# -------------------------------------------------------- Work on attachments
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
my (@currnewattach,@currdelold,@keepold,$toolarge);
&process_attachments(\@currnewattach,\@currdelold,\@keepold);
if (exists($env{'form.addnewattach.filename'})) {
if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
my $subdir = 'feedback/'.$env{'form.timestamp'};
my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
push(@currnewattach, $newattachment);
} else {
$toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
}
}
my $attachmenturls;
my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
my $idx = $env{'form.idx'};
if ($idx) {
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
$attachmenturls = $contrib{$idx.':attachmenturl'};
}
&modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
$attachmenturls,$attachmax{'text'},$toolarge);
return OK;
} elsif ($env{'form.export'}) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
my $mode='board';
my $status='OPEN';
my $previous=$env{'form.previous'};
if ($feedurl =~ /$LONCAPA::assess_re/) {
$mode='problem';
$status=$Apache::inputtags::status[-1];
}
my $discussion = &list_discussion($mode,$status,$symb);
my $start_page =
&Apache::loncommon::start_page('Resource Feedback and Discussion');
my $end_page =
&Apache::loncommon::end_page();
$r->print($start_page.$discussion.$end_page);
return OK;
} elsif ($env{'form.undeleteall'}) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
my $ressymb=&wrap_symb($symb);
$r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
$cdom,$cnum);
$contrib{'deleted'} =~ s/^\.//;
$contrib{'deleted'} =~ s/\.$//;
my $confirm_msg;
if ($contrib{'deleted'} ne '') {
if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
$cdom,$cnum) eq 'ok') {
my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
my @ids = split(/\.\./,$contrib{'deleted'});
my (%chglikes,%chgunlikes);
foreach my $idx (@ids) {
my $uname = $contrib{$idx.':sendername'};
my $udom = $contrib{$idx.':senderdomain'};
my ($totallikes,$totalunlikes);
if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
$totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
}
if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
$totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
}
if ($totallikes || $totalunlikes) {
$chglikes{$uname.':'.$udom} += $totallikes;
$chgunlikes{$uname.':'.$udom} += $totalunlikes;
}
}
foreach my $user (keys(%chglikes)) {
my ($uname,$udom) = split(/:/,$user);
&storediscussionlikes($chglikes{$user},$chgunlikes{$user},
$uname,$udom,$env{'request.course.id'},
'undelete');
}
$confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"));
} else {
$confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1);
}
} else {
$confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1);
}
$r->print(
'<br />'
.&Apache::loncommon::confirmwrapper($confirm_msg)
.&Apache::lonhtmlcommon::actionbox(
["<a href='$feedurl'>".&mt("Return and reload")."</a>"])
);
}
$r->print(&Apache::loncommon::end_page());
return OK;
} else {
# ------------------------------------------------------------- Normal feedback
my $feedurl=$env{'form.postdata'};
$feedurl=~s/^https?\:\/\///;
$feedurl=~s/^$ENV{'SERVER_NAME'}//;
$feedurl=~s/^$ENV{'HTTP_HOST'}//;
$feedurl=~s/\?.+$//;
my $symb;
if ($env{'form.replydisc'}) {
$symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
} elsif ($env{'form.editdisc'}) {
$symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
} elsif ($env{'form.origpage'}) {
$symb="";
} elsif ($env{'form.sendmessageonly'}) {
$symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
} else {
$symb=&Apache::lonnet::symbread($feedurl);
}
unless ($symb) {
$symb=$env{'form.symb'};
}
if (defined($symb)) {
($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
} else {
# backward compatibility (bulletin boards used to be 'wrapped')
&Apache::lonenc::check_decrypt(\$feedurl);
&dewrapper(\$feedurl);
}
my $goahead=1;
if ($feedurl=~/$LONCAPA::assess_re/) {
unless ($symb) { $goahead=0; }
}
if (!$goahead) {
# Ambiguous Problem Resource
$r->internal_redirect('/adm/ambiguous');
return OK;
}
if ($feedurl eq '') {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
&no_redirect_back($r);
return OK;
}
# Go ahead with feedback, no ambiguous reference
unless (
(
($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
)
||
($env{'request.course.id'} && ($feedurl!~m:^/adm:))
||
($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
||
(($env{'request.course.id'}) && ($feedurl =~ /ext\.tool$/))
) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
# Unable to give feedback
&Apache::lonenc::check_encrypt(\$feedurl);
&no_redirect_back($r,$feedurl,2);
return OK;
}
# --------------------------------------------------- Print login screen header
unless ($env{'form.sendit'}) {
&Apache::lonenc::check_encrypt(\$feedurl);
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
my ($blocked,$blocktext) =
&Apache::loncommon::blocking_status('boards');
if ($blocked) {
$r->print(&blocked_reply_or_edit($blocktext));
return OK;
}
}
my $options=&screen_header($feedurl,$symb,$group);
if ($options) {
&mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
} else {
&fail_redirect($r,$feedurl,2);
}
return OK;
}
# Get previous user input
my $prevattempts=&Apache::loncommon::get_previous_attempt(
$symb,$env{'user.name'},$env{'user.domain'},
$env{'request.course.id'});
# Get output from resource
&Apache::lonenc::check_encrypt(\$feedurl);
my $usersaw=&resource_output($feedurl);
# Get resource answer (need to allow student to view grades for this to work)
&Apache::lonnet::appenv({'allowed.vgr'=>'F'});
my $usersymb = &Apache::lonenc::check_encrypt($symb);
my $useranswer=
&Apache::loncommon::get_student_answers(
$usersymb,$env{'user.name'},$env{'user.domain'},
$env{'request.course.id'});
&Apache::lonnet::delenv('allowed.vgr');
# Get attachments, if any, and not too large
my $attachmenturl='';
my $toolarge='';
if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
($env{'form.replydisc'})) {
my ($symb,$idx);
if ($env{'form.replydisc'}) {
($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
} elsif ($env{'form.editdisc'}) {
($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
} elsif ($env{'form.origpage'}) {
$symb = $env{'form.symb'};
}
&Apache::lonenc::check_decrypt(\$symb);
my @currnewattach = ();
my @deloldattach = ();
my @keepold = ();
&process_attachments(\@currnewattach,\@deloldattach,\@keepold);
$symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
$attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
} elsif ($env{'form.attachment.filename'}) {
if (length($env{'form.attachment'})<=$attachmax{'num'}) {
my $now = time;
my $subdir = 'feedback/'.$now;
$attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
} else {
$toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
}
}
# Filter HTML out of message (could be nasty)
my $override;
if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
$override = 1;
}
my $message=&clear_out_html($env{'form.comment'},$override);
# Assemble email
my ($email,$citations)=&assemble_email($message,$prevattempts,
$usersaw,$useranswer);
# Who gets this?
my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
# Actually send mail
my $clientip = &Apache::lonnet::get_requestor_ip($r);
my ($status,$numsent,$delay)=&send_msg(&clear_out_html($env{'form.subject'}),
$feedurl,$email,$citations,
$attachmenturl,$usersymb,$clientip,%to);
# Discussion? Store that.
my $numpost=0;
if ( ($env{'form.discuss'} ne ''
&& $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
|| $env{'form.anondiscuss'} ne '') {
my $subject = &clear_out_html($env{'form.subject'});
my $anonmode;
if (&Apache::lonnet::allowed('pac',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
$anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
}
$typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
$subject,$group);
$numpost++;
}
# Add to blog?
my $blog='';
if ($env{'form.blog'}) {
my $subject = &clear_out_html($env{'form.subject'});
$status.=&Apache::lonrss::addentry($env{'user.name'},
$env{'user.domain'},
'CourseBlog_'.$env{'request.course.id'},
$subject,$message,$feedurl,'public');
if (&Apache::loncommon::course_type() eq 'Community') {
$blog='<br />'.&mt('Added to my community blog').'<br />';
} else {
$blog='<br />'.&mt('Added to my course blog').'<br />';
}
}
# Receipt screen and redirect back to where came from
&redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},
undef,undef,undef,undef,undef,undef,$group,$toolarge,$delay);
}
return OK;
}
sub blocked_reply_or_edit {
my ($blocktext) = @_;
return
&Apache::loncommon::start_page('Resource Feedback and Discussion').
$blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
&mt('Back to previous page').
&Apache::loncommon::end_page();
}
sub wrap_symb {
my ($ressymb)=@_;
if ($ressymb =~ /bulletin___\d+___/) {
unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
$ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
}
}
return $ressymb;
}
sub dewrapper {
my ($feedurl)=@_;
if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
$$feedurl=~s|^/adm/wrapper||;
}
}
sub get_feedurl {
my ($symb)=@_;
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
my $feedurl = &Apache::lonnet::clutter($url);
&dewrapper(\$feedurl);
return $feedurl;
}
sub get_feedurl_and_clean_symb {
my ($symb)=@_;
&Apache::lonenc::check_decrypt(\$symb);
# backward compatibility (bulletin boards used to be 'wrapped')
unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
$symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
}
my $feedurl = &get_feedurl($symb);
return ($symb,$feedurl);
}
sub editing_allowed {
my ($postid,$group) = @_;
$postid = &unescape($postid);
my $can_edit = 0;
if ($group ne '') {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
if (&check_group_priv($group,'egp') eq 'ok') {
$can_edit = 1;
}
return $can_edit;
}
}
my $cid = $env{'request.course.id'};
my $role = (split(/\./,$env{'request.role'}))[0];
my $section = $env{'request.course.sec'};
my $allow_editing_config =
$env{'course.'.$cid.'.allow_discussion_post_editing'};
if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
$can_edit = 1;
} else {
foreach my $editor (split(/,/,$allow_editing_config)) {
my ($editor_role,$editor_sec) = split(/:/,$editor);
if ($editor_role eq $role
&& defined($editor_sec)
&& defined($section)
&& $editor_sec eq $section) {
$can_edit = 1;
last;
}
if ($editor_role eq $role
&& !defined($editor_sec)) {
$can_edit = 1;
}
}
}
return $can_edit;
}
sub check_group_priv {
my ($group,$grp_priv) = @_;
foreach my $priv ('mdg','vcg') {
my $checkcourse = $env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
if (&Apache::lonnet::allowed($priv,$checkcourse)) {
return 'ok';
}
}
if ($grp_priv && $group ne '') {
if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
return 'ok';
}
}
return '';
}
sub group_args {
my ($group) = @_;
if ($group eq '') { return ''; }
my $extra_args = '&group='.$group;
if (exists($env{'form.ref'})) {
$extra_args .= '&ref='.$env{'form.ref'};
}
return $extra_args;
}
sub get_resource_title {
my ($symb,$feedurl) = @_;
my ($restitle,$plainurl);
if (defined($symb)) {
my $plain_symb = &Apache::lonenc::check_decrypt($symb);
$restitle = &Apache::lonnet::gettitle($plain_symb);
}
if (defined($feedurl)) {
$plainurl = &Apache::lonenc::check_decrypt($feedurl);
}
if (!defined($restitle)) {
if (defined($feedurl)) {
$restitle = &Apache::lonnet::gettitle($plainurl);
}
}
if ($plainurl ne $feedurl) {
my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
if ($plain_filename eq $restitle) {
$restitle = &mt('Untitled resource');
}
}
if ($restitle eq '') {
$restitle = &mt('Untitled resource');
}
return $restitle;
}
1;
__END__
=pod
=head1 NAME
Apache::lonfeedback.pm
=head1 SYNOPSIS
Handles feedback from students to instructors and system administrators.
Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
Used by lonmsg.pm.
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 OVERVIEW
None
=head1 SUBROUTINES
=over
=item discussion_open()
=item discussion_visible()
=item discussion_vote_available()
=item get_realsymb()
=item list_discussion()
=item can_see_hidden()
=item discussion_link()
=item send_feedback_link()
=item send_message_link()
=item action_links_bar()
=item postingform_display()
=item build_posting_display
=item filter_regexp()
=item get_post_contents()
=item replicate_attachments()
=item mail_screen()
=item print_display_options()
=item print_sortfilter_options()
=item print_showposters()
=item get_post_versions()
=item get_post_attachments()
=item fail_redirect()
=item redirect_back()
=item no_redirect_back()
=item screen_header()
=item resource_output()
=item clear_out_html()
=item assemble_email()
=item feedback_available()
=item send_msg()
=item adddiscuss()
=item get_discussion_info()
=item show_preview()
=item newline_to_br()
=item tidy_html()
=item generate_preview_button()
=item modify_attachments()
=item process_attachments()
=item generate_attachments_button()
=item extract_attachments()
=item construct_attachmenturl()
=item add_blog_checkbox()
=item has_discussion()
=item sort_filter_names()
=item handler()
=item blocked_reply_or_edit()
=item wrap_symb()
=item dewrapper()
=item get_feedurl()
=item get_feedurl_and_clean_symb()
=item editing_allowed()
=item check_group_priv()
=item group_args()
=item get_resource_title()
=back
=cut
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